GB/T 20818.16-2023 Chinese PDF (GB/T20818.16-2023) GB/T 21461.1-2023 GB/T 45179-2024_Chinese: Man-made fibre -

GB/T 45179-2024_Chinese: Man-made fibre - Determination of friction factors of staple fibres - Capstan method (Chinese: 化学纤维 短纤维摩擦因数的测定 绞盘法)

GB/T 45473-2025_Chinese: Composites and reinforcements fibres - Carbon fibre reinforced plastics(CFRPs)and metal assemblies - Determination of the cross tension strength (Chinese: 复合材料和增强纤维 碳纤维增强塑料（CFRPs）和金属组件 十字拉伸强度的测定)

English versions: GB/T 19228

3-2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 3: Fittings (Chinese: 燃气用埋地聚乙烯（PE）管道系统 第3部分：管件)

English versions: GB 23826-2025

GB/T 20818.16-2023 Chinese PDF (GB/T20818.16-2023) GB/T 21461.1-2023 GB/T 45179-2024_Chinese: Man-made fibre -GB T 20818. 16 2023_Chinese: Industrial process measurement and control Data structures and elements in process equipment catalogues Part 16: Lists of properties(LOPs)for density measuring equipment for electronic data exchange (Chinese: 16(LOPs)) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20818. 16 2023