Galvanized pipe, also known as galvanized steel pipe, divided into two kinds of hot dip galvanizedand electric galvanized, hot dip galvanized galvanized layer thick, with uniform coating, strongadhesion, long service life and other advantages. The cost of galvanizing is low, the surface isnot very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipe.