... Alumina purity, 2, Voltage resistance, 16-25V, 3, available for gas utensils, gas portable stoves. Model: High purity Alumina ... TubeFeatures:1, Extreme high temperature stability under reducing, inert and high vacuum condition under high temp. up ... abrasion resistance,3, Chemical corrosion resistance under high temperature,4, High dielectric properties,5, Gas tight for many ...