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彩鋼板的金屬鍍層可以想象成是均勻分布在鋼板的正反兩面，平方重量指的就是每平方面積的鋼板上，正反兩面所附著的金屬鍍層的重量，

通常以g/㎡表示。例如鋁鋅合金鍍層彩鋼板AZ100g/㎡，就是指每平方米面積的彩鋼板上，正反兩面附著的鋁鋅合金鍍層重量是100克。

鍍層平方重量的高低很大程度上影響著鋼板的表面耐腐蝕性能和切口保護(hù)性能。

The metal plating of the color steel plate can be imagined to be evenly distributed on the positive and reverse sides of the steel plate, and the square weight

refers to the weight of the metal plating attached to the steel plate per square area, usually indicated by g / ㎡.For example, aluminum and zinc alloy coating

color steel plate AZ100g / ㎡, which refers to the color aluminum plate of each square meter area,

the attached aluminum-zinc alloy coating weight is 100 grams.

The square weight of the coating greatly affects the surface corrosion resistance and cutting protection performance of the steel plate.