GB/T 45278.1-2025 Chinese PDF (GB /T45278.1-2025) GB/T 44984-2024 English versions: GB/T 45363-2025

English versions: GB/T 45363-2025

1-2024_Chinese: Non-destructive testing - Penetrant testing - Part 1: General principles (Chinese: 无损检测 渗透检测 第1部分：总则)

GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)

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

GB 17761-2024_Chinese: Safety technical specification for electric bicycle (Chinese: 电动自行车安全技术规范)

GB/T 45278.1-2025 Chinese PDF (GB /T45278.1-2025) GB/T 44984-2024 English versions: GB/T 45363-2025GB T 45278. 1 2025_Chinese: Information technology Time aware network Part 1: Protocol (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45278. 1 2025