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English versions: GB/T 44939-2024
1-2025_Chinese: Electrochemical technical specification for industrial wastewater treatment - Part 1: General (Chinese: 工业废水电化学处理技术规范 第1部分：总则)
English versions: GB 45672-2025
English versions: GB/T 32151
nickel and cobalt contents - Flame atomic absorption spectroscopy (Chinese: 锡化学分析方法 第1部分：铜、铅、锌、镉、银、镍和钴含量的测定 火焰原子吸收光谱法)
GB/T 15558.2-2023 Chinese PDF (GB/T15558.2-2023) GB/T 11356.2-2023 English versions: GB/T 44939-2024GB 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
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