Wedge Wire Screen Mesh Disc kown as Slot Wire Mesh Screen Disc or Johnson Screen Disc ; material: stainless steel wire (202, 205, 304, 304L, 316, 316L, 309, 321) and other metals. Wedge mesh aperture: 0.015-50mm; Wedge mesh length: 0.3-6500mm. Wedge mesh is mainly used for coal washing, quartz sand dehydration, filtering ceramics, solid-liquid separator, sewage treatment, filter element, screening and water treatment filtration in petroleum, chemical, pharmaceutical, food and beverage, metallurgy, coal and other industries