... plate,steel plate 2.Hole:round,lenth,square,others 3.ISO 9001 Certification 4.16 years factory perforated metal meshMaterail:stainless ... grain ventilates.perforated metal mesh also can be used in architectural, the road, the bridge.The product quality has achieved the ... :long square hole, square hole, round hole,triangle hole, hexagonal hole, the plum blossom hole, ichthyosisthe hole,scale hole and ...