The first stage
The entire tape of steel pickling rust, decontamination, to the surface bright and clean.
Pickling, ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank cleaning, and then into the hot dip galvanizing bath, hot dip galvanized galvanized.
The third phase
Galvanized steel tape after storage, galvanized layer according to customer demand, generally not less than 500g / square meters, of which any sample shall not be less than 480g / square meter.