... valve0256BurkertGermanamplifier549ADUSAMass spectrometer/Wan YiChina Application FieldsVacuum Industries:Vacuum system, Pressure container, Valve and Coating system, Vacuum apparatus, Vacuum furnace, and ... fire extinguisher;Refrigeration Industries:Condenser, Vaporizer, Connectingpipe, Valve, Waterlank, Radiator, Low-temperature pump and Low-temperature storage tank ...