... Stainless Steel ,aluminum,galvanized iron,copper 2,hole:round,or as request 3. thickness:0.2mm perforated metalSpecifications1.perforated ... metal mesh 2,hole:round,or as request 3. thickness:0.2mm-10mm 4.size ... sound reduction, weight saving, air control, filtering, a decorative surface, or simply a non-skid effect.Based on their many qualities, ...