Pump and Vacuum Equipment Blower & Fan Compressor Valve and Pipe Fitting  Gas Separation and Liquefaction Plant and Gas Purification: air separation plant, variable pressure adsorption  equipment (household oxygen generator, emergency oxygen generator, plateau oxygen generator), LNG plant,  LNG gasification equipment, equipment electrolyzing water to producing hydrogen, membrane separation plant, gas  purification Filtration Equipment, Separation Machinery, Cooling Equipment, and Drying Equipment Corollary equipments: electric motor, industrial steam turbine, gas turbine, frequency conversion, driving  arrangement; variable speed machinery, bearing, hydraulic pressure, pneumatic device, chain and transmission;  electrical, instrument and automation control equipment; seals and fasteners; dynamic balancer and testing & detecting  device; machine tools, casting, forging, cutting, welding, heat treatment and processing equipment.