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English versions: GB/T 44967-2024
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)
3-2025_Chinese: Leather and fur - Determination of the preservative content - Part 3: Gas chromatography-mass spectrometry method(methanol extraction) (Chinese: 皮革和毛皮 防霉剂的测定 第3部分：气相色谱-质谱法（甲醇萃取）)
4-tetramethyl-1
English versions: GB/T 44968-2024
GB/T 18269-2024 Chinese PDF (GB/T18269-2024) GB/T 29479.1-2025 English versions: GB/T 44967-2024GB T 18269 2024_Chinese: Hand tools for live working with 1 kV AC, 1. 5 kV DC and below (Chinese: 1 kV1. 5 kV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18269 2024
