1.Material:stainless steel plate,steel plate 2.Hole:round,lenth,square,others 3.ISO 9001 Certification 4.16 years factory perforated metal meshMaterail:stainless steel board, aluminum board, copperplate and fiberboard, plastic board and so on.Uses:be used to civil construction, mechanical device protection, handicraft manufacture, upscale sound heartcover,grain ventilates.perforated metal mesh ...