1.thickness:0.5 mm - 25mm; 2.Aperture :3 mm - 10 mm ; 3. ... hole ,the plum blossom hole, the scales hole, design hole,horoscope nets, herringbone hole, pentagram hole, irregular hole, the drum hole, special hole, blind hole, etc 4. Specification : a. thickness : 0 ... Show : Your any inquiry will get my first attention ! galvanized round hole perforated metal sheet