99% ceramic corundum tube 1.Material: 85 - 99.7% alumina ceramic 2.Purpose:used in various furnace 3.High quality 99% ceramic corundum tube Gongtao company mainly produce alumina tubes, rods and various industrial ceramic parts, which are mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace(containig vacuum furnace, carburizing furnace, wire ...