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China GB Standards List

 GB/T 44059.1-2024  
Medical gas Pipeline systems - Part 1: - Pipe systems for compressed medical gases and vacuum

医用气体管道系统-第1部分:-压缩医用气体和真空用管道系统
 GB/T 29168.1-2021  
Petroleum and natural gas industries—Induction bends, fittings and flanges for Pipeline transportation systems—Part 1: Induction bends

石油天然气工业 管道输送系统用感应加热弯管、管件和法兰 第1部分:感应加热弯管

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