High precision steel pipeis the molten metal galvanized steel and iron alloy substrate reaction, layer, so that the substrate and coating combination of both.
Galvanized steel pickling is the first, in order to remove the steel surface of iron oxide, pickling, the aqueous solution by ammonium chloride or zinc chloride or ammonium chloride and zinc chloride mixed solution tank cleaning, and then into the hot-dip plating bath.
I produced a uniform coating of galvanized pipe, strong adhesion, and long life.
Company business:
DIN series of cold-drawn or cold rolled precision seamless steel tubes and related coating (normal passivity, white zinc, color zinc, green passivity) steel, NBK diesel high-pressure pipe, pipe rust phosphate.