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China GB Standards List

 GB/T 6556-2016  
Type,main dimension,material and marking of mechanical seals

机械密封的型式、主要尺寸、材料和识别标志
 GB/T 20276-2016  
Information security techniques—Security technical requirements for IC card chip with CPU

信息安全技术 具有中央处理器的IC卡嵌入式软件安全技术要求

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