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新条形码 英国剑桥信息防伪技术公司新近发明一种将条形码置于商品内部的技术,在商品标签中嵌入一组细小的钴片,通过钴片之间极其
New bar code British Cambridge Anti-counterfeiting Technology Company recently invented a bar code placed inside the product technology, embedded in the product label a group of small pieces of cobalt, through the cobalt between the extremely