KS M ISO 8501-1-2021 涂料和相关产品涂覆前钢衬底的制备.表面清洁度的目视评定.第1部分:未涂覆钢衬底和整体去除先前涂层后钢衬底的锈蚀等级和制备等级
Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates a