... valve0256BurkertGermanamplifier549ADUSAMass spectrometer/Wan YiChina Application FieldsVacuum Industries:Vacuum system, Pressure container, Valve and Coating system, Vacuum apparatus, Vacuum furnace, and fire extinguisher; ... in-phase radiation light source, Experiment, Surface analysis system and Space simulation system;Aviation and Spaceflight:Airplance airfoil oil tank, inertial navigation ...