UPC code is a 12 digit number. Check any package with a UPC and you will see 1 small number at the beginning, 10 big numbers and 1 small number at the end. You determine what is the last 5 digits. http://www.qualityupc.com/barcodes/?gclid=CLKfr7jo0K4CFYNx4Aod3
【在 N****E 的大作中提到】 : UPC code is a 12 digit number. Check any package with a UPC and you will see : 1 small number at the beginning, 10 big numbers and 1 small number at the : end. You determine what is the last 5 digits. : http://www.qualityupc.com/barcodes/?gclid=CLKfr7jo0K4CFYNx4Aod3