ELMETAL offers perforated metal with various patterns mainly standard perforated patterns and decorative patterns. Custom designs available. Precise parameters guaranteed. Hole Patterns: Round; Rectangular hole; Square; Triangle; Diamond; Hexagonal; Cross; Slotted; and other patterns according to your drawings or application requirement. Materials: Aluminum plate, carbon plate, stainless steel plate, aluminum - magnesium alloy plate, Cooper wire plate, nickel plate. Features: 1) Can be readily formed 2) Easy installation 3) Can be painted or polished and anodizing. 4) The thickness of materials is wide range from 0.3mm-8mm. 5) Largest selection of hole size patterns and configurations 6) Uniform sound abatement, 7) Attractive appearance 8) Durable 9) Superior abrasion resistances Applications: CELMETAL perforated metal sheet is widely used in protecting from ambient noise where the highway, railway and subway come through the city. It can also be used in building wall power station .factory ceiling wall plate and other source of noise in order to sound absorption.also can be used as the machine guards as the pic showed.