... Perforated metal Sheet 2.Material: galvanized 3.Thickness:0.1-10mm 4.round hole,staggered. 5.QC:ISO9001:2000 Perforated metal sheet ... made. 2. Processing and patterns: Perforated into diamond, square, round, triangle and decorative patterns.3.Shape:long square hole, square ... hole, round hole,triangle hole, hexagonal hole, the plum blossom hole, ...