... We mainly produce 99.7% alumina tubes, rods and various industrial ceramic parts, which are mainly used in ... industrial furnace(containing vacuum furnace, carburizing furnace, wire furnace, atmosphere furnace etc), especially widely used in petrochemical, spinning, electric ... m8.68.28.210Thermal conductivityW/m.k25252511Electric insulation strengthKV/mm2020151220 degree Celsius direct currentinsulating ...