Aiyia Dx51d Z40 Z60 Z100 Z180 Z275 Z350 Galvanized Strip ...
Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts after pickling it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed solution of ammonium chloride and zinc chloride.And then sent to the hot-dip …
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