Carbon composite materials made by vapor deposition process using integral carbon felt and carbon fiber cloth as substrates. It is a light-weight, high-strength composite material capable of withstanding temperatures over 3000°C in many environments. Can be processed into various customized items, It can also be used as thermal insulation lining material for vacuum furnace. Applications include aerospace fields，metallurgy, chemical industry, machinery and other fields.

High purity rigid felt cylinder is a composite rigid felt product obtained by high-temperature graphitization treatment and purification in a purification furnace. It is mainly used as high purity and low ash insulation material for the growth of silicon crystals and silicon carbide crystals thermal field. Ash content ≤20PPM.

High purity graphite soft felt is a high-purity, low ash graphite felt product obtained through a special technics of purification.