name:galvanized welded steel pipe ,can be ordered accroding to requirement
Hot galvanized pipe is to melt the base metals and iron alloy body reaction layer so that coating matrix and a combination of both.
To make the hot galvanized pipe, the first is pickling, in order to remove the surface oxide, pickling through aqueous ammonium chloride or zinc chloride or ammonium chloride and zinc chloride mixed aqueous solution to carry out the washing tank, and then send Hot-dipped into the tank. Hot dip galvanized coating has a uniform, strong adhesion, long life. Its zinc is 200-350kg/m2 on the base of our best price.
