... Main equipments:Smelting equipments:3 and 4 tons induction furnaces,electric slag furnaces of 0.5t ,1t,3t,5t,especially 3 ... and 5 tons electric slag furnaces which feature both unipolar and bipolarity series function ... gas producer,reheating furnace,gas annealing furnace ,electric annealing furnace ,electric hydraulic grinding machine,electric band saw and gantry saw and so on. ...