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GB/T 45147-2024_Chinese: Road vehicles - Test of vehicle air braking systems with a permissible mass of over 3
GB/T 21833
5-2023_Chinese: Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 5: Fitness for purpose of the system (Chinese: 燃气用埋地聚乙烯（PE）管道系统 第5部分：系统适用性)
GB/T 28294-2024_Chinese: Iron and steel slag composite materials (Chinese: 钢铁渣复合料)
GB/T 32590.2-2024 Chinese PDF (GB/T32590.2-2024) GB/T 45574-2025 GB/T 45147-2024_Chinese: Road vehicles -GB T 32590. 2 2024_Chinese: Railway applications Suburban railway and urban guided transport management and command control systems Part 2: Functional requirements specification (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 32590. 2 2024
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