... ,stainless steel,.. Hole Shape:round,square... Hole diameter:0.55-100mm board thickness: 0.2-15 Perforated Mesh1.Materials: stainless steel, metal ... belt, general ply is 0.5 mm.2.Nonmetal board: plywood, fiberboard, dense board ,plastic board and rubber board.3.Hole forms we can ... in the following specifications: a).hole diameter: 0.55-100mm, b).board thickness: 0.2-15mm.We can also make the thickness ...