... include vacuum gas-quenchin furnace, vacuum high-pressure gas-quenching furnace, vacuum carburizing furnace, and vacuum annealing furnace ... steel,elastic alloy,stainless steel,and other materials Bright quenching oil, pressurized(hyperbaric) gas quenchin; magnetic materials ... brazing temperature and vacuum sintering 7 Feature:quenching oil and gas quenching two functions, the application of a wide ...