Producing graphite felt, rigid graphite board and CFC Using in Vacuum Furnace, polysilicon ingot furnace, Monocrystalline Silicon Furnace, inert atmosphere furnaces, crystal growth furnace, multicrystalline DSS, single crystal furnace, High Temperature Sintering Furnace, Directional Solidification System (DSS) furnaces, and much more Thermal Insulation Products for heat insulating. Gansu HaoShi Carbon Fiber Co., Ltd.(HSCF) is the leading manufacturer of PAN-based Carbon Fiber in China, HSCF began to research and industrialize in 1988. From our modern production factories in Central GANSU Province, CHINA, there have the China's largest high-temperature Vacuum Furnaces and entire process of production using computer-controlled temperature. The main products include premium high purity Carbon..