Some common factors for gel pen quality control:
Appearance
Quantity check
Measurement(weight& size)
Function test
Smell test
Button fatigue test
3M tape test for Logo
Barcode scanning
Carton dropping test
Some common factors for gel pen quality control:
Appearance
Quantity check
Measurement(weight& size)
Function test
Smell test
Button fatigue test
3M tape test for Logo
Barcode scanning
Carton dropping test