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锌铝镁是一种合金金属，它主要是用作钢及钢制品的表面防腐蚀处理，一开始被广泛应用作钢制品表面防腐处理的金属是纯锌，随着技术的发展的

改进，进行了各种各样的试验，陆续出现了铝锌合金和锌铝镁合金等合金金属，增加了金属层耐腐蚀的效果。而且通过了一定的铝镁合金试验，

发现了较佳的金属配比来达到更有的防腐效果。锌铝镁镀层钢板是指在现有的热镀锌镀层中添加了一定量的Al、Mg或者在热镀铝锌镀层中添加了

一定量的Mg元素的镀层钢板，具有高耐蚀性、高切边保护性能的特点。

Zinc aluminum magnesium is a kind of alloy metal, it is mainly used as steel and steel products surface corrosion treatment, was widely used as steel products

surface corrosion treatment metal is pure zinc, with the improvement of the development of technology, a variety of tests, has appeared aluminum zinc alloy and

zinc aluminum zinc magnesium alloy alloy metal, increase the effect of metal layer corrosion resistance.And through a certain aluminum and magnesium alloy test, found a better metal ratio to achieve more anti-corrosion effect.Zinc, aluminum and magnesium plating steel plate refers to the plating steel plate with a certain amount of Al, Mg or a certain amount of Mg element added to the existing hot plating galvanized zinc plating, with the characteristics of high corrosion resistance

and high edge cutting protection performance.