The arrangement of this type of holes is normally that of holes arranged parallel to the short side or the long side of the sheet. Zonal perforations can also be made according to the customer's design. Materials used: Iron - galvanized - Stainless Steel - Aluminum - Copper - Brass - etc. Sheet thicknesses: 1 ÷ 1.5 mm. Applications: mechanics, vents, cabinets.