China Manufacturing N Quality Control Blog

The One Belt One Road strategy is built on the ancient and maritime silk road. It is a major strategy proposed by China for the transformation of the national economy in recent years. It is conducive to promoting the rapid development of the Chinese economy, effectively solving the problem of excess production capacity, promoting GDP growth and domestic employment, and reducing the gap between different regions This gap provides favorable guarantees for building a harmonious society. The challenges brought by the Belt and Road Initiative to China’s economic development are:

1. The positive impact of the Belt and Road Strategy on China’s economic development
(1) Promote the regional economy in the central and western regions and consolidate the coastal economy in the east. Under the new situation, the Silk Road economy is rich in natural resources. However, due to subjective and objective factors in various aspects, there are certain problems, such as inconvenient transportation, Economic development is slow, and there is an urgent need to revive the ancient Silk Road, give full play to all aspects of the advantages of the central and western regions, and promote the comprehensive development of the central and western regions. Under the role of the Belt and Road Initiative, traditional and characteristic industries in the central and western regions have developed rapidly, and a brand-new industrial chain has emerged. Together with the implementation of the western development strategy, China’s central and western regions have ushered in new development opportunities and greatly accelerated the central and western regions. The speed of regional development is conducive to improving the overall economic benefits of the region. At the same time, under the role of the Belt and Road Initiative, the eastern coastal economy has been further consolidated. As far as the eastern region is concerned, it has convenient water transportation and superior natural conditions, but the social market space is gradually saturated, and the lack of consumer demand is widespread. With the help of the One Belt One Road strategy, the eastern coastal areas have new development opportunities, further expansion of foreign markets, the implementation of the One Belt One Road strategy, effectively consolidating the economy of the eastern coastal areas, and promoting the development of the region in a better and faster way. Be prepared for comprehensive strength.
(2) Effectively solving the problem of overcapacity In the process of China’s economic development, the importance of the implementation of the Belt and Road Initiative is self-evident. In the context of the social market economy, China’s economic growth is already in a new normal, which is conducive to the effective solution of the problem of excess capacity. Many areas have ushered in new development opportunities, such as real estate, cement, and steel, which are conducive to the implementation of the global strategy. Under the One Belt One Road strategy, the relevant industries have been effectively integrated. For example, in 2016, Baosteel’s internal planning and reorganization effectively disposed of zombies and so on, and improved energy efficiency in various aspects. At the same time, since the reform and opening up, China has been developing labor-intensive manufacturing industries with the help of developed country markets, such as the United States and Europe. However, as labor costs are increasing, China ’s manufacturing industries are in trouble. Some industries with excess capacity are not saturated in many less developed countries, and demand is particularly high. In this context, with the help of the Belt and Road Initiative, China is better positioned on the road of international capacity cooperation. The output of industries and capabilities has become the key, not just commodity trade and various products.

(3) Conducive to industrial transformation and upgrading, and embark on the road of brand autonomy. From an objective perspective, the One Belt One Road strategy meets the objective requirements of the new normal development of the Chinese economy, conforms to the objective laws of the development of the times, and promotes the overall development of the Chinese economy. Important Guarantee. In the past, in terms of foreign trade, China was at the bottom of the industrial chain, with processing trade as its center. The added value of the industry was not high, and it did not have a high return on investment, which seriously affected the sustainable development of the Chinese economy. Under the Belt and Road Initiative, China’s industrial structure can be better transformed and upgraded. Enterprises in related industries can optimize the use of a series of advanced technologies and experience, optimize the traditional extensive industrial structure, and transform to an intensive industry, which will help strengthen their innovation awareness and optimize utilization. All aspects of resources, build independent brands, effectively respond to the rapidly changing international market, and better respond to challenges from various aspects. For example, in 2014, Chery Automobile has appeared in the Iranian market. This is a Chinese company’s overseas investment and development of independent brands. A major breakthrough in this regard has far-reaching significance. Under the role of the Belt and Road Initiative, China’s domestic demand has further expanded, exports have increased sharply, the surplus labor force has been improved, more platforms have been provided for individual employment, entrepreneurship and even innovation, and a harmonious and stable energy supply environment has benefited China. Industries and fields develop better.

2. Challenges brought by the Belt and Road Strategy to China’s economic development
While promoting the economic development of China, the Belt and Road Initiative has brought new challenges, which are reflected in different aspects.
(1) The economic development is in an unbalanced state, and the market is difficult to expand. Developed and emerging economies are included along the Belt and Road, and economic development is not balanced, which is not conducive for Chinese companies to better enter relevant markets, mainly because in the new situation, market access standards are not the same, and business cooperation In the process, it is difficult for Chinese companies to accurately grasp the corresponding scales in accordance with specific conditions, resulting in more uncertain factors in economic and trade exchanges. At the same time, along the Belt and Road, most of them belong to developing countries. The overall economic level needs to be improved. To achieve a win-win situation, we need multiple efforts.

(2) The political instability of the countries along the route is not conducive to the overall development of China’s economy. As far as the Belt and Road is concerned, there are particularly many countries involved. Some of them have conflicts in various aspects, such as territories, races, religions, and are threatened by terrorist forces. They are not conducive to social stability and hinder the pace of economic development. . In other words, in the course of trade, the investment risk coefficient of imports and exports will definitely increase. In addition, some countries’ politics is in turmoil. China’s expansion theory and China’s threat theory will affect the implementation of the Belt and Road Strategy and hinder China. Comprehensive economic development.

3. Concluding Remarks In the context of the social market economy, the proposal of the Belt and Road Initiative has had varying degrees of impact on the overall development of the Chinese economy. The advantages outweigh the disadvantages, and are conducive to promoting the comprehensive economic development of the central and western regions of China. Solving the problem of excess capacity is conducive to the transformation and upgrading of the industrial structure, but there are also certain risks, large cultural differences, and political instability. Chinese enterprises must integrate their own operating conditions, base on the basic national conditions, implement the Belt and Road development concept, give full play to their advantages in various aspects, promote the comprehensive development of China’s economy, continuously enhance China’s comprehensive strength, and embark on a long-term development path. China occupies an important position.

Metal stamping is the use of punch press and mold stainless steel, iron, aluminum, copper and other plates and the opposite material deformation or fracture, to achieve a certain shape and size of a process. Usually metal stamping technology using plate, thin wall tube, thin profile as raw materials, with easy operation, high stamping precision, easy to achieve mechanization and automation and other advantages. What are the methods to improve the metal stamping process:

One, the rational development of stamping processing technology

1, hardware stamping parts in the design of the structural shape of parts, it is best to use a simple and reasonable structure of the surface and its combination, but also should try to make the minimum number of processing surfaces and processing area.

2, metal stamping materials, not only to meet the technical requirements of product design, but also to meet the requirements of stamping process and stamping after cutting, electroplating, cleaning and other processing requirements.

3, metal stamping forming performance requirements for the forming process, in order to facilitate the stamping deformation and improve the quality of the parts, the material should have a good plasticity, small flexural strength ratio, plate thickness directional coefficient, plate plane directional coefficient, material yield strength and elastic modulus ratio is small. For the separation process, the material does not need to have a good plasticity, but should have a certain plasticity, the better the plasticity of the material, the more difficult to separate.

4. Select the method of blank preparation in reasonable mechanical manufacturing, which can directly use profile, casting, forging, stamping and welding, etc. The selection of blank is related to the specific production technical conditions, generally depends on the production volume, material properties and processing possibilities.

5. Specify the processing cost of parts with appropriate manufacturing accuracy and surface roughness. The processing cost of hardware stamping parts will increase with the improvement of accuracy, so the surface roughness of hardware stamping parts should be made appropriate provisions according to the actual needs of the surface.

6, the selection of stamping oil should meet the technical requirements, the stamping oil with excellent performance can significantly improve the processing environment, improve the accuracy of the workpiece.

Two, the principle of stamping hardware processing

1. Precision principle: the number of working procedures of drawing parts is related to the properties of materials, drawing height, number of drawing steps, drawing diameter, material thickness and other conditions, which can only be determined by drawing process calculation.

2. Principle of refinement: the number of working procedures of bending parts mainly depends on the complexity of their structural shapes, which shall be determined according to the number of bending angles, relative positions and bending directions.

3, fine principle: when the requirements for the section quality and dimensional accuracy of the stamping workpiece is higher, you can consider adding the finishing process after the blanking process or directly using the precision blanking process.

4, precise principle: blanking the shape of the workpiece is simple, the use of a single process mold can be completed, and in blanking the shape of the workpiece is complex, because the structure or strength of the mold is limited, its internal and external contour should be divided into several parts blanking, need to use multiple processes of hardware stamping processing. If necessary, a continuous die can be used. For the workpiece with higher flatness requirements, a leveling process can be added after the blanking process, the characteristics of each product accurate into the production process.

5, quality principle: in order to ensure the quality of precision metal stamping parts, improve the stability of metal stamping processing technology sometimes need to increase the number of procedures. Such as additional positioning process of the bending hole punching, forming process to increase the deformation to reduce the hole blanking to transfer the deformation area, to ensure that each product to achieve precision, fine, fine quality.

The above is the method to improve the quality of metal stamping parts, the system of reasonable processing technology is to improve the workpiece accuracy of the most effective method

Inspection standards for products and packages

1. The product

1) there must be no security problem in use

2) no damage, scratch, cracking, etc

3) comply with the laws and regulations of the destination country and the requirements of the customer

4) product structure, appearance, technology and materials shall meet customer requirements and approval samples

5) products shall meet customer requirements or have the same functions as batch samples

6) label identification shall be clear and meet the requirements of laws and regulations

2. Packing:

1) the packaging shall be suitable and strong enough to ensure the reliability of the product transportation process

2) packaging materials shall protect the transportation of products

3) the shipping marks, bar codes and labels shall meet customer requirements or batch samples

4) packaging materials shall meet customer requirements or batch samples

5) the description, instructions and related label warnings must be clearly printed in the language of the destination country

6) the description shall conform to the product and relevant functions

3. Bedspread test

carton drop test

open carton check

size and weight test

needle detection test

color difference check

Printing firmness test

barcode test

First. Integrated Process
1. Inspect the frame for damage and lens scratches.
2. Check whether the lens film layer is consistent and whether the color depth of the tinted lens is the same.
3. According to the order of the glasses, whether the corresponding frames and lens brand models match.
4. Adjust the frame to the standard level.
5. Measure the lens power (including astigmatism power and astigmatism axis), and punch out the optical center point.
6. Determine whether the lens power is consistent with the data (including astigmatism power and astigmatism axis).
7. Measure the interpupillary distance to see if it matches the data.
8. Determine and calculate the mutual difference between the upper and lower levels of the lens and the mutual difference between the left and right interpupillary distance.
9. According to the data showing near or far use, determine whether the position of the optical center point is correct (the distance of the optical center point should be in the upper center of the lens. The contrary is used for near use).
10. Check the remarks column of the optician order to see if there are special requirements for processing (such as modification, chamfering, polishing, etc.).
11. After cleaning the glasses, wrap them in a mirror cloth and put them in the mirror box. Sign the name and seal of the quality control officer on the data card, and put them into the pick-up cabinet.

Second, the full frame matters needing attention:
1. Check whether the closing is locked. If the lock is not tight, the lens is too large. (The joint is not more than 0.5mm)
2. Turn the lens after tightening the screw. If it is loose, the lens is too small.
3. Check if there are pads in the mirror ring. If there are pads or glue, it is unqualified.
4. Check whether the lens ring is deformed, whether the size of the two lens rings is the same, and whether there is a gap between the lens of the frame.

Third, half-frame notes:
1. Check whether the grooves are even and whether there are double or multiple grooves.
2. Whether the lens size is the same, whether the lens will be loose, and whether there is a phenomenon of jumping. If it is low, pay special attention to the nose.
3. Whether the lens has been polished and whether both sides are polished.

Fourth, borderless matters needing attention:
1. Whether the punch position is on a horizontal line.
2. Whether the size of the hole is appropriate, whether the lens will be loose, and whether the frame blade and the lens are compliant.
3. Whether the shape and size of the lenses are the same, have they been polished?
4. Whether there is a split in the punched position.

1. Switch performance detection: An umbrella is in your hand. First, you need to open the umbrella flexibly. Once you open it to the top, it is unobstructed and does not fall. It is just a matter of closing it. The switch parts do not malfunction or fall off. When using an automatic umbrella, good opening and closing is the standard, and the automatic button will not fail. The button must not be actuated by itself. Press the button lightly with your hand. The self-opening speed should be fast but not fierce, even and strong, and the pulling force should not be excessive when retracting.

2. Umbrella bone inspection: The umbrella bone should not be easy to rust, the electroplated surface should be smooth, and the spring should be elastic. After the umbrella bone is retracted, it should be close to the umbrella pole. The upper, middle, and lower nest ties must be flattened so that they are level and without thorns. When the switch is used for recycling, the medium rod electroplating will not be surrounded by flowers and make metal noise.

3. Umbrella surface inspection: Umbrella cloth should be a special umbrella cloth with twill weave, and it should be flat and tight, no rain, no pollution, no holes, no jumping yarn, uniform color, similar flower shape and striped stitching. The surface of the nylon cloth umbrella should have a rain-proof resin glue, it should not leak during the rainstorm, there should be no obvious weaving defects and leaking pulp, and there must be no star light transmission. When the umbrella surface is opened, the umbrella shape should be full and beautiful, and should not be “pot-shaped” or “deep bowl-shaped”. The testing standard of rainbow umbrellas must be cleaned and cut off. The umbrella cloth must not have any thread ends.

4. Inspection of other parts: Umbrella should be round and bright, no burrs, no shelling, weld seam cracking, etc. The exposed end face should be flat without sharp, light and empty. The shape of the umbrella handle should be beautiful, firm, and comfortable, etc. In addition, after the umbrella is opened, the joints should not feel loose and fluttering when shaking.

5. Open umbrella test:
A. Remove the umbrella cover, open the buckle, and shake the umbrella surface to make it open evenly.
B. Push up on the button of the umbrella handle (be careful not to hold down the button) until the top of the umbrella is locked. After it is opened, shake the umbrella to see if it is firm.

6. Umbrella test:
A, Automatic umbrella hand at the button of the umbrella handle, gently press, the umbrella is closed. Press the switch button of the manual umbrella, and pull the umbrella gently to snap the umbrella to the switch position.

B. After folding, close the umbrella bone to the umbrella holder, then straighten the leaves one by one along the crease, and close the umbrella page in the same direction to find the umbrella buckle. The strap on the umbrella buckle can be tightened and rotated around the umbrella leaf once to buckle. When putting the umbrella cover, turn it clockwise downwards, and then you can easily insert the umbrella cover.

1. Check the packaging and interior

(1) cartons and cartons (or color boxes) clean, neat, no damp, extrusion deformation, dirty, marked clearly;

(2) foam packaging size appropriate, clean, and no deformation, moisture, damage and other defects;

(3) the production date of the carton is clearly marked;

(4) whether the packaging method is reasonable and firm;

(5) whether the bar code is clear;

(6) whether the machine installed in the box is consistent with the packaging; Instruction manual, certificate of conformity and legible print.

2. Check the product sticker

(1) all the stickers are in the right position, no wrong paste, paste, no bubble, warped edge. (the test can be wiped with a cloth soaked in alcohol.)

(2) all the stickers printed word is clear and neat, the design, logo, color is clear and correct;

(3) whether the product name, power, voltage and frequency on the nameplate are correct;

(4) product components whether there are scratches, black spots, burrs, watermarks, stains and other bad phenomena, color is correct;

(5) the position of each accessory is close, leaving a gap of no more than 1mm; Whether the switch button is flexible, whether the handlebar assembly is firm, the position is appropriate.

3. Product performance testing

(1) high voltage test: AC 110/220v 3.1kv /1MIN 0.5ma;

(2) switch test: power test, continuous switch more than 10 times, should be able to work normally;

(3) power test: under standard voltage, +5% ~ -10% of rated power is the normal operating range, otherwise, it is unqualified product;

(4) start the test: start the test from the low position first, and start the machine immediately after the switch;

(5) wind blockage test (prevent fan from stopping)

(6) test of electric heating wire: under normal operation, the heating wire should not redness obviously (wind blocking for 1-2 seconds). When working at 15% above the rated power, it should work normally for at least 30 minutes. Protection switch can not be premature protection, plastic shell deformation;

(7) noise testing: use the noise tester (A) to measure the weight.

(8) life test: under normal voltage, it can work continuously for at least 200 hours (factory standard). During 4-6 hours of aging test, the power cord shall not be obviously hot, the plastic shall not be deformed, and the protection switch shall not take off (except under special circumstances);

(9) cold wind test

(10) hot air test

(11) drop test

(12) power cord test: pull the power cord with a force of 15 kilograms (KG) without loosening or disconnecting the power cord. The power cord should be normally energized without any bad contact

(13) appearance test (visual test): all switches are flexible, not stuck or scratched. No burr, scratch, crack, release, etc. The heating wire should not be too close to the net cover;

Some common factors for hearing aid quality control:

Appearance

Quantity check

Smell test

Function test

3M tape test for Logo

Barcode scanning

Internal check

Product endurance test

Battery voltage test

Tape check on silk- screen/painting/electroplate

Assembly check

Charging test

Aging test

Hi-pot test for charger

Output current check

Carton dropping test

Vietnam’s industry has shown rapid growth in recent years. The most promising industries are undoubtedly those that are industrialized, modernized, and advanced technologies, which have a certain role in driving and promoting Vietnam’s GDP growth.

Vietnam will prioritize the following industries:

(A) processing manufacturing and chemical industry

1. Machinery and metallurgy

By 2025, priority will be given to the development of machinery and equipment, automobiles and spare parts, and steel for industrial production; after 2025, priority will be given to the development of shipbuilding, non-ferrous metals and new materials.

2. Chemical industry

By 2025, priority will be given to the development of basic chemicals, oil and gas chemicals, plastics and rubber spare parts chemicals; after 2025, priority will be given to the development of pharmaceutical chemicals.

3. Agriculture, forestry and fishery processing industry

By 2025, priority will be given to increasing the processing ratio of major agricultural products, aquatic products and wood products in accordance with the adjustment of the agricultural industrial structure. Adopt international standards in the production and processing process to build the brand and competitiveness of Vietnamese agricultural products.

4.Textile and footwear

By 2025, priority will be given to the development of raw materials for the textile and footwear industry for domestic production and export; after 2025, priority will be given to the development of high fashion and footwear.

(2) Electronic communication industry

By 2025, priority will be given to the development of computers, telephones and spare parts; after 2025, priority will be given to the development of software, digital services, communications technology services and medical electronics.

(3) New energy and renewable energy

By 2025, vigorously develop new and renewable energy sources, such as wind, solar, and biomass capabilities; and vigorously develop nuclear, geothermal, and tidal energy after 2025.

Vietnam’s manufacturing industry grows rapidly

Vietnam is not only a production base for labor-intensive industries such as clothing and footwear, wood processing, but also increasingly popular with electronics manufacturers in recent years. Multinational companies such as Samsung, Intel and Microsoft, Nokia mobile phones have expanded production in the country. In addition to these existing companies expanding production, other overseas electronics companies have also continued to influx, driving the total output value of the Vietnamese electronics industry to rise steadily, with a compound annual growth rate of 59% from 2008 to 2013, which is higher than the growth of the overall manufacturing output value. Rate (24%) more than doubled. Since 2013, electronics have become Vietnam’s largest export cargo.

Vietnam’s export growth has been significant, mainly driven by foreign direct investment.

According to the Ministry of Industry and Trade of Vietnam, in 2015, foreign direct investment enterprises accounted for 71% of Vietnam’s total exports, and almost all of the country’s exports of telephones, electronic products, computers and components came from foreign companies. In 2015, the United States, the European Union, ASEAN, China, Japan and South Korea were Vietnam’s main export markets.

In recent years, the main imported products include machinery, equipment and parts, as well as electronics, computers and accessories. Most of the imported machinery and equipment are related to the assembled goods exported. China is Vietnam ’s largest source of imports, followed by South Korea, ASEAN, Japan, the European Union and the United States.

China-Vietnam bilateral trade in 2019

Vietnam has released import and export data for 2019, with China still Vietnam’s largest trading partner, Vietnamese media reported. Data shows that in 2019, the total import and export volume of China and Vietnam reached 116.87 billion US dollars, which is the second consecutive year that the trade volume of the two countries exceeded 100 billion US dollars.

In the nearly $117 billion import and export cooperation, Vietnam’s export to China was $41.41 billion, an increase of only $150 million or 0.36% over the same period last year, and its import from China was $75.452 billion, an increase of $10 billion or 15.3% over the same period last year.

China’s export to Vietnam continues to grow at a high speed, and the Vietnamese market has attracted the attention of Chinese enterprises. In recent years, Chinese enterprises have set off a boom in investing and setting up factories in Vietnam.

Vietnam’s foreign trade in 2019

Vietnam’s total foreign trade in goods is expected to be US $516.96 billion in 2019. Among them, Vietnam’s export volume of goods is US $263.45 billion, an increase of 8.1% year on year; the total import volume is expected to be US $253.51 billion, an increase of 7% year on year. The trade surplus is about $9.94 billion.

A. facial precautions:

1. Do not twist when climbing, and the vamp is scratched or damaged. (such as genuine leather: toe, cover and outer waist, do not appear defective leather, such as insect spots, scratches, stains, etc.). Whether the material of cow velvet is faded or not, with a pair.

2. Do not be unsmooth, wrinkle or pockmarked. Toe tip must be smooth not hair Angle.

3. Check whether the trademark letters are correct and indispensable.

4. The inside of the toe head shall not be folded or stamped, and check whether it is suitable for climbing into the middle sole (consider putting the front port treasure to help the front half of the foot when making cotton shoes).

5. Check if there is any drawing under the middle bottom plate, if there is any missing or missing port, or if the port is not hard enough (especially after port must be hard).

6. Do not have floating line, broken line, more do not have no bottom line, jump needle.

7. Whether the ratio of toe tip warping is consistent or not, and whether the comparison is correct or not.

8. Compare the sample shoes to see whether the vamp is chromatic aberration, and whether the brightness and polishing effect are the same as the sample.

9. Do not allow the shoe barrel to be smooth, do not wrinkle, smooth zipper, lock mouth.

10. Smooth boot. Boot inside smooth, inside seam is in place.

11. Whether the boot is leaning back.

12. The shape of the instep arch must be standard, not caving in.

13. Whether the zipper is smooth, whether the stop slip, whether the fastness is enough, whether the trademark is correct.

14. Use the magic band to hook the shoes and check whether the adhesive force is up to standard.

B. notes for bottom:

1. Check whether the steel core of the middle bottom is made of fierce steel, whether the material of the middle bottom plate conforms to the company’s standards, and whether the hot bottom is rolled.

2. Try on whether it fits or not, and whether the high heel will shake unsteadily (this must be paid attention to).

3 big bottom, can not fade color, thickness, hardness to reach the standard (50-55).

There should be no foreign body in the shoes, and the nails in the shoes should be removed.

C. accessories:

1. All kinds of decorations: do not break, paint off, scratch hand, flying edge, do not be iron material, not easy to fall off.

2. Electrical embroidery needle spacing must be beautiful, can not fall off, not obvious color difference.

3. If the surface is decorated with beads and buttons, the fastness must be good (pull and pull to see if it falls off).

1. Preparation before inspection:

1) Confirm the computer and auxiliary equipment to be tested (such as the USB interface is plugged in normally).

2) Confirm the computer test software (confirm the consistency of the software interface).

3) Determine the reliability test tools for screen printing and label printing.

2. Product inspection items:

1) Full inspection.

2) Special inspection items (AQL S-2 standard is generally used).

3) Product process inspection and special inspection (AQL S-1 or 2 standards are generally used).

3. Full inspection items inspection:

a. The product outer box inspection shall be neat and undamaged.

b. Color box packaging. Requires cleanliness, no damage, etc.

c. Product appearance and inspection of accessories

d. Flatness check (placed on the glass surface)

e. Check the status of each function LED

f. Connect with computer to test the basic functions of buttons

4. Special inspection items (AQL S-2 standard is generally used):

a. Working current / standby current test (wireless battery products)

b. Wireless frequency test (wireless product / recorded measured frequency)

c. Low voltage indication or alarm function (recording trigger voltage)

e. Effective working distance of wireless keyboard (record the maximum distance)

f. System compatibility test. The system mentioned in the general test manual or package is provided by the factory and tested one by one.

g. CD driver installation, compatibility test without system, general test manual or system mentioned in the package, provided by the factory and tested one by one, CD file for virus scanning.

h. Bar code test. Randomly select three color boxes and scan with a bar code machine.

i. Record the information such as USB cable length, battery model, voltage, etc. in the report.

5. Product process inspection and special inspection (AQL S-1 or 2 standards are generally used)

a. Internal structure inspection: It mainly includes two parts: main PCB circuit board and main control chip.

b. Record the weight and size of the carton and record it in the report

d. Drop test of the outer box according to the international standard

Common keyboard defects

1. No function of single or multiple keys (tested by software)

2. Can’t pair with wireless receiver

3. Not paired with the wireless receiver (that is, when the code is fixed during production, it should be paired one by one)

4. Rubber feet fall off or are badly installed

5. The surface of the glass is uneven

6. Seriously poor assembly, (shell cracks, missing screws, etc.)

7. Cut flowers, dirty, poor screen printing

8. Dirt (glue, mimeograph, etc.)

9. Slightly bad packaging (scratch, hands, etc.)