... ,hole:round,or as request 3. thickness:0.2mm perforated metalSpecifications1.perforated metal mesh 2,hole:round,or as request 3. thickness ... simply a non-skid effect.Based on their many qualities, perforated sheets are well suited for sorting, facades, ceilings, lamps, shelves ... mesh;according to the hole,it is divided into diamond,square,round,triangle,scale hole,it is strong and wear-resisting ...