美利体育登录入口官网:DIN EN ISO 8501-4 E:2019-06
涂料和有关产品涂覆之前钢基片的制备 表面清洁度的目视评估 第4部分:与水冲法有关的初始表面条件、制备等级和闪锈等级(草案)
Preparation of steel substrates prior to application of paints and related products Visual assessment of surface cleanliness Part 4: Initial surface conditions, preparation levels and flash rust levels relevant to the water flush method (draft)