The difference of the process: The hot-dip galvanizing is the workpiece degreasing, pickling, dipping, drying after immersion in liquid zinc dissolved some time, asked to come to. Cold galvanizing, also known as electro-galvanized, into the ...
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Principle of hot dip galvanized steel pipe Hot-dip galvanized zinc layer is liquid at high temperatures, the formation of three steps: 1, the iron-based surface is dissolved to form zinc and zinc - iron alloy phase layer; 2, zinc alloy ...
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