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China GB Standards List

 GB/T 43617.2-2024  
rolling bearings-Noise test of rolling bearing grease-Part 2: Test and evaluation method BQ+

滚动轴承-滚动轴承润滑脂噪声测试-第2部分:测试和评估方法BQ+
 GB/T 43617.1-2024  
rolling bearings-Noise test of rolling bearing grease-Part 1: Basic principles, test components and testers

滚动轴承-滚动轴承润滑脂噪声测试-第1部分:基本原则、测试组件和测试仪
 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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