We are offering perforated metalowning punching machine, shearing machine, bending machine, accuz process perforated sheet, coil, plate, disc, guard, shield, acoustic panel, screen, strainer, filter, ladder rung, antiskid plate, dimple plate, grip strut grating and perf-o grip grating, customizing various patterns ornamental & decorative perforated metal according to drawings and datas. There are the moulds of most of the specs in our workshop. Our inventory is constantly expanding to meet the changing needs of our clients around the country and around the world. in line staggered material: pattern:carbon steel roundstainless steel (304&316) squareelectric -galvanized triangularhot dip galvanized slottedaluminum diamondcopper clubbrass hexagonalrules of thumb for perforating1) generally, the hole diameter should be more than the thickness of the material.2) for stainless steels and similar higher strength materials, it is preferable to at least three thickness gauges thinner than hole diameter. 3) the bar width should be greater than material thickness because of thin bar break off easily.4) the long sides of perforated sheet can be supplied with minimum margins, and the short sides of the sheet can have either minimum margins or no margins.