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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 40420.4-2021 |
Broadband customer gateway virtualization based on public telecommunication network—Part 4:Technical requirements for physical business gateway 基于公用电信网的宽带客户网关虚拟化 第4部分：实体企业网关技术要求 |
China National Standards 4:Technical |
 English PDF |
| GB/T 11798.4-2001 |
Motor vehicle safety testing equipment--Technical requirements of verification--Part 4:Technical requirements of verification for speedometer tester of roller type 机动车安全检测设备 检定技术条件 第4部分:滚筒式车速表试验台检定技术条件 |
China National Standards 4:Technical |
English PDF |
| GB/T 6078.4-1998 |
Centre drills--Part 4:Technical specifications 中心钻 第4部分:技术条件 |
China National Standards 4:Technical |
English PDF |
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