As a specific machine of hardware industry, particularly the iewelry industry, the machine is featuredwith easily handled combination of machine body, excellent insulation furnace and mechanicaltransmission performance for maintaining the stability of high-purity protection gas, and equippeda mixed aas purification device for producina nitrogen by means ofammonia decomposition. Themachine is a good equipment of bright annealing of the various metals and stampings, solid solutionprocessing,connection welding and lead welding.
