GB/T 26731-2024 Chinese PDF (GB /T26731-2024) GB/T 31901-2024 1-2025_Chinese: Design specification for mechanical

1-2025_Chinese: Design specification for mechanical components in nuclear island of pressurized water reactor nuclear power plants - Part 1: General principle (Chinese: 压水堆核电厂核岛机械设备设计规范 第1部分：总则)

English versions: GB/T 37027-2025

GB/T 15566

3-2025_Chinese: Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface (Chinese: 无损检测 超声检测试块 第3部分：曲面检测标准试块)

GB 17167-2025_Chinese: General rules for energy measuring instrument equipping and managing of energy user (Chinese: 用能单位能源计量器具配备和管理通则)

GB/T 26731-2024 Chinese PDF (GB /T26731-2024) GB/T 31901-2024 1-2025_Chinese: Design specification for mechanicalGB T 26731 2024_Chinese: Treatment and processing of end of life tyres (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 26731 2024