GB 21343-2023 Chinese PDF GB/T 45451.2-2025 GB/T 45357-2025_Chinese: Plastics piping systems

GB/T 45357-2025_Chinese: Plastics piping systems on ships - Polyethylene (PE) pipes and fittings (Chinese: 船用塑料管道系统 聚乙烯（PE）管材及管件)

hardness and iron - Spectrophotometric detection by discrete analysis systems (Chinese: 锅炉用水和冷却水分析方法 磷酸盐、氯化物、硅酸盐、总碱度、酚酞碱度、硬度和铁的测定 基于间断分析系统的分光光度法)

GB/T 37133-2025_Chinese: High voltage connection system for electric vehicle (Chinese: 电动汽车用高压连接系统)

1-2025_Chinese: Mobile laboratory - Part 1: General rule (Chinese: 移动实验室 第1部分：通则)

GB 44506-2024_Chinese: Chinese people‘s police emblem (Chinese: 人民警察警徽)

GB 21343-2023 Chinese PDF GB/T 45451.2-2025 GB/T 45357-2025_Chinese: Plastics piping systemsGB 21343 2023_Chinese: The norm of energy consumption per unit production of calcium carbide, vinyl acetate, polyvinyl alcohol, 1, 4 butanediol, dicyandiamide and monocyandiamide (Chinese: 14 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 21343 2023