gas nitriding furnace : nitriding of steel parts, auto cranked shaft, auto piston ring, and molds Gas Nitriding furnaceThe RN series nitriding furnace is cyclic energy-saving furnace, mainly used for nitriding of steel parts, auto cranked shaft, auto piston ring, and molds. Temperature: 650 degree celcius1) The furnace has hot air circulation device, unifying the temperature and atmosphere inside ...