... zinc, enhanced the corrosion and rust resitence. Detailed Product Information :Hot Dipped Galvanized Steel Pipe1.Standard: GB,, ASTM, BS, JIS, 2.Material: ... Hot Dipped Galvanized Steel pipe , Pre-galvanized Steel Pipe, Galvanized steel Coil , Alu-zinc Steel Coil , Pre-painted Steel Coil , Prime Painted Galvanized Steel Coil , , Cold Rolled Steel Coil and also Pickled Plate.Hot dipped galvanized steel ...