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China GB Standards List

 GB/T 29168.1-2012  
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
 GB/T 29125-2012  
Test Methods for fuel consumption of CNG vehicles

压缩天然气汽车燃料消耗量试验方法

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