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The hot dip galvalume steel is a kind of coated steel.
With the cold rolled steel of different strength and
thickness as substrate, it is produced through applying
Al-Zn coat on both faces by hot dip process. In its coating,
Al accounts for about 55%, Si 1.6%, while the remaining is Zn.
It enjoys both the physical protective feature and durability
of Al and the electrochemical protective property of Zn. And
its surface has bright silver color and regular
embossed-like figure, which are highly decorative.
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