... is corrosion-resisting, long-lasting, winding-resisting, smooth-surface. Perforated Metal mesh 1. Material: S.S.; Hot Dip Gal. Iron; ... in folded or flat panels. From various metal plate. punched openings can be round, square, triangle, diamond, hexagonal, cross, etc. 3. ... sound mesh, in ventilate of grain depot. 4. Characteristic:The metal is punched to mesh sheets, corrosion-resisting, long-lasting, ...