It is said that the first barcode is 690-695, which is made in China, and the others are imported. What is the principle?
Totally wrong, 690-695 is a registered enterprise or brand holder in China. There is no meaning of origin at all. Chinese trademarks produced abroad can also use bar codes starting with 690-695. On the contrary, goods with foreign bar codes can also be produced in China. Apple's mobile phone is an example. Authenticity has nothing to do with bar codes.