... available 3.High quality competitive price perforated sheet, punching hole meshMaterial: mild steel, galvanized steel, stainless steel, ... 304L, 316, 316L, 430 , aluminum, brass etc.Hole patternround (generally running in diagonal rows at 60 degree), ... rectangular, elliptical, square, triangle, diamond, hexagonal, cross, slotted, star, plum blossom, other special patterns.Sheet sizenormally ...