LuoYang Sigma Furnace Co., Ltd, was established in 1996, which are specilized in researching and developing 1000°C-2600°C laboratory furnace, muffle furnace, vacuum furnace, tube furnace, high temperature induction furnace, sintering furnace, which are applied for a varelity of Colleges and Unversities Laboratory to sinter and melt high temperature inorganic materials, ceramic materials, functiinal materials, metallic materials for, etc. The maximum temperature we can make is 2600°C, we have done the 2300°C sintering experiment for Tsinghua Universuty, Chinese Academy of Science and a academy of science in Iran. And our products have sold to Iran, Russia, India, America, Brazil, Korea, etc. Ultra high temperature heating element and high temperature sensor in contact-type are developed by our company, which can measure above 2000°C directly, this project filled the domestic and international blank in the fiele of high temperature measuring.