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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 32398-2015 |
Chinese internet email address—Technical specification for SMTP extension to support 中文电子邮件地址 简单邮件传输协议扩展技术要求 |
China National Standards MTP |
 English PDF |
| GB/T 29198-2012 |
Technical requirements of adaptation layer of No.7 signalling interworking with IP—MTP2 peer-to-peer adaptation layer No.7信令与IP互通适配层技术要求 消息传递部分（MTP）第二级对等适配层（M2PA） |
China National Standards MTP |
English PDF |
| GB/T 28503-2012 |
Technical requirements of adaptation layer of No.7 signalling interworking with IP MTP2 user adaptation layer No.7信令与IP互通适配层技术要求消息传递部分 （MTP）第二级用户适配层（M2UA） |
China National Standards MTP |
English PDF |
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