标题: DIN 50979-2008 金属镀层 附加无铬Cr(VI)处理的铁或钢表面锌和锌 [打印本页] 作者: liuxilin1215 时间: 2015-1-27 08:03:04 标题: DIN 50979-2008 金属镀层 附加无铬Cr(VI)处理的铁或钢表面锌和锌
DIN 50979-2008 Metallic coatings – Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(VI)-free treatment
金属镀层 附加无铬Cr(VI)处理的铁或钢表面锌和锌合金静电镀层