GB/T 18978.20-2024 Chinese PDF (GB /T18978.20-2024) GB/T 17643-2025 305-2025_Chinese: National food safety standard

305-2025_Chinese: National food safety standard - Determination of bisphenol A

2-2024_Chinese: Non-destructive testing - Penetrant testing - Part 2: Testing of penetrang materials (Chinese: 无损检测 渗透检测 第2部分：渗透材料的检验)

English versions: GB 31616-2025

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)

GB/T 19405

GB/T 18978.20-2024 Chinese PDF (GB /T18978.20-2024) GB/T 17643-2025 305-2025_Chinese: National food safety standardGB T 18978. 20 2024_Chinese: Ergonomics of human system interaction Part 20: An ergonomic approach to accessible design (Chinese: 20) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18978. 20 2024