Fe：铁，基材
Ep：电镀
Zn：锌，镀覆层材质
8：最小镀层厚度8μm
C：铬酸盐转化处理
2：铬酸盐镀覆层等级
D：铬酸盐处理类型 ：不透明(棕色或古铜色)
Fe refers to the basic metal
Ep. Zn refers to the electropated zinc coating
8 is the min. coating thickness in um
c refers to cromate conversion coating
2 is the class of chromate coating
D is the type of chromate :Opaque (olive green shading to brown or bronze)
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