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1-2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 1: General (Chinese: 燃气用埋地聚乙烯（PE）管道系统 第1部分：总则)
2-2025_Chinese: Rules for agricultural seed testing - Part 2: Sampling (Chinese: 农作物种子检验规程 第2部分：扦样)
fittings and flanges for pipeline transportation systems - Part 2: Fittings (Chinese: 石油天然气工业 管道输送系统用弯管、管件和法兰 第2部分：管件)
GB/T 45239-2025_Chinese: Evaluation methods of nocturnal blue light radiation hazards (Chinese: 夜间蓝光辐射危害的评价方法)
2-2024_Chinese: Steel for the reinforcement of concrete - Part 2: Hot rolled ribbed bars (Chinese: 钢筋混凝土用钢 第2部分：热轧带肋钢筋)
GB/T 31406-2024 Chinese PDF (GB/T31406-2024) GB/T 15237-2025 1-2023_Chinese: Buried polyethylene(PE) piping systemsGB T 31406 2024_Chinese: Quality requirements for dried meat slice (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31406 2024
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