... ,copper 2,hole:round,or as request 3. thickness:0.2mm perforated metalSpecifications1.perforated metal mesh 2,hole:round,or as request ... seemingly high cost.The Perforated sheets can be used with advantage in many situations, for instance when requiring sound ... non-skid effect.Based on their many qualities, perforated sheets are well suited for sorting, facades, ceilings, lamps, shelves, shielding, ...