rfid systems upc bar code epc gen 2 rfid identities reading tag
测试结果如下:github:https://github.com/fengbingchun/barcode_test
通用商品代码 (upc)universal product code,很多新手卖家第一次听到
upc码(uniform product code)作为美,加产品统一的标识符号. 申请
做打印upc-a ean-13条形码标签code128b code39 itf14 ucc定制作
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