... . Wide measuring rang:0~2300C WR * Z-type thermocouple is a special vacuum furnace for non-oxidation atmosphere, high ... pressure. Vacuum furnaces generally use a dedicated tungsten rhenium thermocouple Series C, D as its sub-degree temperature components, ... high temperature tantalum, molybdenum, tungsten, corundum and high-temperature alloys for the protection of pipes, corundum, beryllium oxide, boron ...