... The perforated metal can be easily formed,installed,painted or polished,beautiful,light,sound abatement,abrasion resisrance. The Perforated ... 5-25mm ∩ Dimension: width equals to or less than 1500mm length equals to or less than 4000mm or long coil ∩ Equipment: CNC Perforating ... Diameter: the size of the holes∴ Hole pattern: staggered or straight∴ Pitch(the distance between two nearest holes' center∴ ...