... .3-100mm 2.Material: Stainless steel plate, low carbon plate, Material: Stainless steel plate, low carbon plate,galvanized plate, PVC plate, cold-roll copper, nickel,cold steel,Hole patterndiamond ,square ,oval ... blossom,Method ; punching machinery perforated in various of diffident material plate in order to suitable for diffident needs Hole diameter: 0 ...