标准号:NFT35-501-1-2007
英文标准名称:Preparationofsteelsubstratesbeforeapplicationofpaintsandrelatedproducts-Visualassessmentofsurfacecleanliness-Part1:rustgradesandpreparationgradesofuncoatedsteelsubstratesandofsteelsubstratesafteroverallremovalofprevi
国际标准分类号:25.220.10