... :0.5m-3m 4.shape:Round, Square Galvanized Rectangular Metal Hole Punch Punch Metal /Punched Metal/perforated metalMaterialCarbon steel, Aluminum, Brass, Copper.FinishPowder ... or hole diameter.· Weaving and characteristics: It is punched to meshes. With the character of winding-resisting, Ageing-resisting, flat and smooth ...