China Galvalume Steel Coil AZ150 G550 GL Aluzinc steel ...
Aluminum zinc alloy coated steel is composed of 55% aluminum, 43.4% zinc and 1.6% silicon .For Mesco Steel we only offer clients the high quality product which is 55% aluminium composed.The corrosion resistance of aluminized zinc steel coil is mainly due to the protective function of aluminum. When the zinc is worn, the aluminum forms a dense layer of alumina that prevents the …
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