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Different kinds of Letter board inspection: 
 
Letter board quotes
alphabet Letter board
funny Letter board
Letter board sayings
white Letter board
blank Letter board
black Letter board
 
Letter board inspection:
 
Some common factors for letter board quality control:
 
Appearance
Quantity check 
Measurement(weight& size&thickness)
Smell test
Basic function check
3M tape test for Logo
Humidity test
Barcode scanning
Carton dropping test
Words fitting test on letter board

 letter board quality control



 

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