perforated metal 1.material: Stainless Steel ,aluminum,galvanized iron,copper 2,hole:round,or as request 3. thickness:0.2mm ... is made of high quality Stainless Steel ,aluminum,galvanized iron,copper sheet/coil after being perforated on the digital control machines ... mesh;according to the hole,it is divided into diamond,square,round,triangle,scale hole,it is strong and wear-resisting ...