This device is used before air tightness test ,for LPG cylinder manufacturer or LPG cylinder testing station production line. It composed of piston air compressor, air storage tank, air cylinder and air inflation gun. The quantity of air inflation gun is decided according to the customers' requirements. 1.general situation The company is the production of series leveling unit, cutting leveling unit, slitting unit production line of professional manufacturers, products popular nationwide major metal material companies, a number of steel mills and many well-known industrial, mining enterprises, and exported to Europe, Africa, Southeast Asia and other countries and regions, well received by users at home and abroad. 2.Specification of slitting unit:(315)X2000mm 3.Specification of slitting unit Purpose of slitting unit This unit is suitable for slitting and winding steel plates of various materials. The large drum plate is unwound, longitudinally cut into several strips of steel according to the required width, and then rewind and bind into strips for cold bending, stamping, pipe welding and other next procedures.