The bright annealing furnace apply the nitriding,carburizing,heat treatment for the tooling,moulding,axes,gear whell. Bright annealing ... furnace is used for a variety of non-oxidation bright heat treatment of products in the prevacuum and protective atmosphere ,which ... the charger basket are all welded by the high heat-resisting steel sheet and plate.There is the ventilator on the furnace ...