The heating element of high temperature optical fiber drawing machine is usually of tungsten, molybdenum, tantalum, graphite, etc., because they are easily oxidized, it often requires the protection of the gas. And the disturbance of the gas inevitably affect the temperature in the furnace, and the temperature distribution. High-temperature graphite carbon volatile easily contaminated products. We just research and production of heating tubes can be composed of electric furnace can be used in oxidizing atmosphere temperature of 2300 degrees, up to 3000 degrees, the highest temperature of the electric furnace oxidizing atmosphere at home and abroad. The wire drawing machine can be directly performed in the air drawing. Does not require any gas protection. The material of the heating element is currently the world's most advanced ceramic materials, good conductive properties of ceramics, thermal shock, corrosion resistance, high temperature stability. This conductive ceramic evaporation boat, electrodes, crucibles is an unprecedented, high-performance products. These products in the community has been applied for the first time.