Draft Document - Aerospace series - Environmental testing - Test Xb: Abrasion of markings, letterings, surfaces and materials caused by rubbing fingertips and hands; English version prEN 4860:2020
文件草案——航空航天系列——环境试验——试验Xb:指尖和手摩擦造成的标记、文字、表面和材料磨损;英文版prEN 4860:2020