... -10mmOpen area: 0.3%-63%Process: punchUse: Filter part, metal filter panelHole: round, square, diamondCharacter: winding-resisting ... , hexagonal, diamond, lightly pull scale, cross, slotted and special patterns to get special decoration results. Feature:The product ... petroleum, mine, machinery, battery, filtering to engine oil and diesel, indoor and outdoor decoration, making the crafts, production of ...