Perforated Mesh Material:iron,stainless steel,.. Hole Shape:round,square... Hole diameter:0.55-100mm board thickness: 0.2-15 Perforated Mesh 1.Materials: stainless steel, metal, high quality alloy plate or belt, general ply is 0.5 mm.2.Nonmetal board: plywood, fiberboard, dense board ,plastic board and rubber board.3.Hole forms we can process are: round ,slot, square, triangle, protruding(fish ...