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'2020'
China GB Standards List

 GB/T 39199-2020  
Characterization and testing methods of recycled polyethylene (PE)

聚乙烯(PE)塑料再生料的表征特性及检测方法
 GB 146.1-2020  
Gauge for standard gauge railways—Part 1: rolling stock gauge

标准轨距铁路限界 第1部分:机车车辆限界

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