GB/T 25444.6-2023 Chinese PDF (GB/T25444.6-2023) GB/T 21510-2024 6-2025_Chinese: Design specification for mechanical

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)

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)

English versions: GB/T 28511

GB/T 2039-2024_Chinese: Metallic materials - Uniaxial creep testing method in tension (Chinese: 金属材料 单轴拉伸蠕变试验方法)

GB/T 25444.6-2023 Chinese PDF (GB/T25444.6-2023) GB/T 21510-2024 6-2025_Chinese: Design specification for mechanicalGB T 25444. 6 2023_Chinese: Mobile and fixed offshore units Electrical installations Part 6: Installation (Chinese: 6) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25444. 6 2023