GB/T 20604-2025 Chinese PDF (GB /T20604-2025) GB/T 16895.3-2024 3-2025_Chinese: Design specification for mechanical

3-2025_Chinese: Design specification for mechanical components in nuclear island of pressurized water reactor nuclear power plants - Part 3: Class 2 components (Chinese: 压水堆核电厂核岛机械设备设计规范 第3部分：2级设备)

English versions: GB/T 17215

GB 45186-2024_Chinese: Requirements of restricting excessive packaging in express delivery (Chinese: 限制快递过度包装要求)

1-2025_Chinese: Plastics - Determination of temperature of deflection under load - Part 1: General test method (Chinese: 塑料 负荷变形温度的测定 第1部分：通用试验方法)

7-2024_Chinese: Methods for chemical analysis of silver - Part 7: Determination of gold and palladium content - Inductively coupled plasma emission spectrometry (Chinese: 银化学分析方法 第7部分：金、钯量的测定 电感耦合等离子体发射光谱法)

GB/T 20604-2025 Chinese PDF (GB /T20604-2025) GB/T 16895.3-2024 3-2025_Chinese: Design specification for mechanicalGB T 20604 2025_Chinese: Natural gas Vocabulary (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20604 2025