The inner materials wire of PVC-coated welded wire mesh panels or rolls has steel wire, hot dipped galvanized wire, electro galvanized wire, and low carbon steel wire. with a breakthrough coating process. The finished PVC-coated welded wire mesh can have high corrosion resistance. Galvanized welded mesh is coated with a thick layer of PVC which is tightly bonded to the wire by a heat process. They have double protection. Not only does the vinyl coating seal the wire from water and other corrosive elements, but the underlying mesh is also protected by a zinc coating.