GB/T 18876.1-2024 Chinese PDF (GB/T18876.1-2024) GB/T 17925-2024 English versions: GB/T 13296-2023

English versions: GB/T 13296-2023

6-2023_Chinese: Chemical analysis methods of rare earth impurities in rare earth metals and their oxides - Part 6: Determination of lanthanum

GB/T 45263-2025_Chinese: Sharing economy - Guidelines for provider verification on digital platform (Chinese: 共享经济 数字平台资源供给者审核指南)

21-2023_Chinese: Mechanical structures for electrical and electronic equipment - Dimensions of mechanical structures of the 482

English versions: GB 4407

GB/T 18876.1-2024 Chinese PDF (GB/T18876.1-2024) GB/T 17925-2024 English versions: GB/T 13296-2023GB T 18876. 1 2024_Chinese: Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis Part 1: Determining the inclusion or second phase constituent content of steels and other metals by automatic (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 18876. 1 2024