... ration: 2-300um 3)ISO9000,2001 Stainless Steel Wire Mesh Filter Cartridge Mesh material: stainless steel wire mesh, black wire cloth, ... shape. Implementation of the standards: metal filter is manufactured according to GB5330-85 standards. Applications: filter, petroleum, oil refining, chemical industry, ... liquid foam, as well as automobile and tractor air filter. Filter diameter: 5 mm to 600 mm.