1>nice appearance 2>low price 3>long-time guarantee 4>and high resistance to corrosion welded wire mesh Materials: low carbon steel wire ,stainless steel wire Types:Welding after galvanized, welding after hot –dip zinc, welding after plastic coated, galvanized after welding.square aperture: ¼",½",¾",1",3/8",5/8", 2",2.5",3",1/3"oblong aperture: ¼"X½",½"X1",1"X2" ect.