Huangshan gold stone wood polyimide (A-PI) has a long-term use temperature of -269~300 ℃ and a short-term use temperature of more than 480 C. It has good self-lubrication, insulation, high voltage resistance, chemical corrosion resistance, high-temperature plasma resistance, long-term nuclear radiation resistance, low water absorption, low linear expansion coefficient, excellent mechanical properties and excellent toughness.