GB/T 15558.2-2023 Chinese PDF (GB/T15558.2-2023) GB/T 45253-2025 1-2025_Chinese: Copper base brazing filler

1-2025_Chinese: Copper base brazing filler metals - Part 1: Solid brazing filler metals (Chinese: 铜基钎料 第1部分：实心钎料)

GB/T 10781

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)

English versions: GB/T 17903

1-2024_Chinese: Plastics - Poly(methyl methacrylate)(PMMA) moulding and extrusion materials - Part 1: Designation system and basis for specifications (Chinese: 塑料 聚甲基丙烯酸甲酯(PMMA)模塑和挤出材料 第1部分：命名系统和分类基础)

GB/T 15558.2-2023 Chinese PDF (GB/T15558.2-2023) GB/T 45253-2025 1-2025_Chinese: Copper base brazing fillerGB T 15558. 2 2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels Part 2: Pipes (Chinese: PE 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15558. 2 2023