Aluminum silicate fiber products are made by melting selected high-quality gemstones in an electric furnace above 2000 ℃, mechanically blowing them into fibers, and uniformly adding special binders, oil repellents, and water repellents through deep processing. They are then heated and solidified to produce aluminum silicate fiber felt, blanket, board, and pipe shell insulation materials. This is a new type of lightweight refractory material, which has the characteristics of light bulk density, high temperature resistance, good thermal stability, low thermal conductivity, good resistance to mechanical vibration, small thermal expansion, good thermal insulation performance, long service life, high tensile strength, good elasticity, and non toxicity. It is a new type of material that replaces asbestos and can be used at a temperature of up to 1500 ℃. It is widely used in petrochemical projects LNG projects, coal chemical projects, power industry, power boilers, steam turbines and nuclear power insulation, fire insulation for shipbuilding industry, fire insulation for construction industry, fire insulation for fire doors, wall lining for high-temperature reaction equipment and heating equipment in chemical industry, automobile and train manufacturing, fire prevention, insulation, kiln lining, furnace doors, top cover sealing insulation, etc.