LIQUID AIR

PRESSURE REGULATORS, PRESSURE GAUGES, AUTOMATIC GAS PRESSURE REGULATING VALVES, PRESSURE RELIEF VALVES, FLOW METERS, REGULATORS, AND INDICATORS FOR CONTROL PANELS, AND CONTROLS FOR DIRECTING THE FLOW OF GAS; PROPORTIONING METERS AND VALVES FOR GAS IN AN INDUSTRIAL PROCESS, COMPUTER CONTROLLED ANALYZERS AND COMPUTER CONTROLLED PROPORTIONING VALVES FOR GASES, AND GAS PRESSURE REGULATING, FLOW CONTROLLING AND PROPORTIONING UNITS FOR THE HANDLING AND ADMINISTRATION OF MEDICAL GASES