... mild steel, stainless steel, aluminum, brass hole diameter:3-10mm pitch(mm):5,10,15 coated perforated metal mesh1.Material: mild ... steel, galvanized steel, stainless steel, aluminum, brass etc. 2. ... / Iron steelGalv.steel/Gal.30/40/60/90PVCOthers2.Hole shapeRound, square, slot, diamond, triangle, hexagonal, clover, others3. Dimensions (mm) ...