GI is full name Galvanized Iron. GI typically refers to essentially pure zinc (>99%) continuously hot dip coated steel, PPGI refers to factory pre-painted zinc coated steel, where the steel is painted before forming, as opposed to post painting which occurs after forming. Factory Direct Dx51d 914mm Zinc-Coating Cold Rolled Galvanized Steel Coil Factories Price list process is also used to manufacture steel sheet and coil with coatings of aluminium, or alloy coatings of zinc/aluminium, zinc/iron and zinc/aluminium/magnesium which may also be factory pre-painted. While GI may sometimes be used as a collective term for various hot dip metallic coated steels, it more precisely refers only to zinc coated steel. Similarly, PPGI may sometimes be used as a general term for a range of metallic coa......
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