Hot-dip galvanized channel steel is also called hot-dip galvanized channel steel and hot-dip galvanized channel steel. It is an effective metal anti-corrosion method and is mainly used in metal structural facilities in various industries. It is to immerse the channel steel after derusting in the molten zinc of about 440~460 ℃, so that the zinc layer is attached to the surface of the channel steel, thus achieving the purpose of anti-corrosion. Now the main method of galvanizing the surface of the channel steel is hot dip galvanizing.