GB/T 21667-2024 Chinese PDF (GB /T21667-2024) GB 4789.38-2025 English versions: GB/T 19973

English versions: GB/T 19973

6-2025_Chinese: Design specification for mechanical components in nuclear island of pressurized water reactor nuclear power plants - Part 6: Reactor vessel internals (Chinese: 压水堆核电厂核岛机械设备设计规范 第6部分：堆内构件)

English versions: GB/T 18916

3-2024_Chinese: Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors (Chinese: 低压电气装置 第5-54部分：电气设备的选择和安装 接地配置和保护导体)

1-2025_Chinese: Plastics - Determination of tensile properties - Part 1: General principles (Chinese: 塑料 拉伸性能的测定 第1部分：总则)

GB/T 21667-2024 Chinese PDF (GB /T21667-2024) GB 4789.38-2025 English versions: GB/T 19973GB T 21667 2024_Chinese: General rules of the second hand goods qualification (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21667 2024