Perforated Mesh Material:iron,stainless steel,.. Hole Shape:round,square... Hole diameter:0.55-100mm board thickness: 0.2-15 Perforated Mesh1 ... .Materials: stainless steel, metal, high quality alloy plate or belt, general ply ... thickness and 2mm scope: 0.5 mm, especially for thin sheet below, 3: (1), petroleum, chemical, food, pharmaceutical precision ...