... Protection in 1500C,1600C,1800C Furnace Ceramic Thermocouple Tubes Thermocouple Protection Tubes offered by us are used inhigh temperature ... atmosphereand protect thermocouple sensors against mechanical damages. With these tubes fine grained, impervious and non-porous in nature, ... are best suited Our Mullite (silica/alumina) protection tubes have excellent thermal shock resistance as well as good ...