... , metallurgy, The materials: filter discs made of metal wire mesh in single layer or multi-layer. Double layer or three layer,Can ... Filter Discs: Filter discs are mainly used in the absorption, evaporation and filtration process in petroleum, chemical, medicine, metallurgy, machinery, ship and ... mist drop or liquid foam or used as air filter in cars and trucks.Disc Diameter: From 5mm to 600mm Filter ...