It is composited of self-developed mica fabric and high-temperature resistant and refractory fabric through high-temperature silicone resin.

Polyimide fibres are characterized by their excellent thermal stability, mechanical properties, and chemical resistance.

Preoxidized Fiber (POF), also known as Oxidized Polyacrylonitrile (OPAN) fiber, is a high-performance intermediate product in the production of carbon fibers.