GB/T 13871.3-2023 Chinese PDF (GB/T13871.3-2023) GB/T 33523.600-2025 1-2023_Chinese: Buried polyethylene(PE) piping systems

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)

1-2025_Chinese: Norm of water intake for industry in the Yellow River basin - Part 1: Thermal power production (Chinese: 黄河流域工业用水定额 第1部分：火力发电)

GB/T 13594-2025_Chinese: Performance requirements and test methods of anti-lock braking system for commercial vehicle and trailer (Chinese: 商用车辆和挂车防抱制动系统性能要求及试验方法)

GB/T 45269-2025_Chinese: Footwear - Test methods for whole shoe - Flexing durability (Chinese: 鞋类 整鞋试验方法 耐屈挠性能)

4-2024_Chinese: Grain and oil storage - Monitoring and control system of stored-grain condition - Part 4: Information exchange interface protocol (Chinese: 粮油储藏 粮情测控系统 第4部分：信息交换接口协议)

GB/T 13871.3-2023 Chinese PDF (GB/T13871.3-2023) GB/T 33523.600-2025 1-2023_Chinese: Buried polyethylene(PE) piping systemsGB T 13871. 3 2023_Chinese: Rotary shaft lip type seals incorporating elastomeric sealing elements Part 3: Storage, handling and installation (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 13871. 3 2023