1.DBL Brand Perforated Metal 2.ISO 9001;2008 certificated 3.Meterial:galvanized sheet 4.Thickness:0.3-20mm Perforated Metal panel Material: galvanized sheet, stainless steel sheet, aluminum sheet,copper sheet ,Opening type: round hole, square opening, rectangle opening,Slot hole, hexagonalPattern: straight line, staggered patternPacking; wooden palletUsed: widely used in the core of filter, ...