... , diamond hole, round hole, slotted holes, hexagonal hole, the hole, triangle hole, long waist hole ,the plum blossom hole, the scales ... hole, etc 4. Specification : a. thickness : 0.5 mm - 50mm b. length : to 20 m c. Aperture : 3 mm - 10 mm ... .Product Show : Your any inquiry will get my first attention ! triangle hole decorative galvanized perforated metal (hot sell 30 years factory ...