GB/T 42203-2022 Chinese PDF (GB/T42203-2022) GB/T 21649.1-2024 2-2025_Chinese: Design specification for mechanical

2-2025_Chinese: Design specification for mechanical components in nuclear island of pressurized water reactor nuclear power plants - Part 2: Class 1 components (Chinese: 压水堆核电厂核岛机械设备设计规范 第2部分：1级设备)

systems (Chinese: 交流系统用高压瓷和玻璃绝缘子的人工污秽试验)

GB/T 45468-2025_Chinese: Microbeam analysis - FIB-SEM imaging and analysis method for 3D micro-pore structure of rock sample (Chinese: 微束分析 岩石微孔隙聚焦离子束-扫描电镜三维成像分析方法)

English versions: GB/T 33348-2024

GB/T 42203-2022 Chinese PDF (GB/T42203-2022) GB/T 21649.1-2024 2-2025_Chinese: Design specification for mechanicalGB T 42203 2022_Chinese: Intelligent manufacturing Industrial data Cloud adaptation specification (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 42203 2022