美利体育登录入口官网:KS M ISO 4628-3:2008 涂料和清漆.漆膜降解的评定.缺陷量值、大小和外观均匀改变程度的规定.第3部分:生锈等级的评定
Paints and varnishes-Evaluation of degradation of paint coatings-Designation of intensity, quantity and size of common types of defect-Part 3:Designation of degree of rusting