This corrosion-resistant sleeve adopts a double-layer composite structure. The outer layer is high-temperature resistant silicone with heat resistance up to about 280℃, featuring corrosion resistance, aging resistance and good flexibility. The inner layer is basalt fiber with heat resistance up to 700℃, providing heat insulation, flame retardancy and wear resistance. It effectively protects pipelines and cables from high temperature, corrosion and friction, suitable for industrial high-temperature lines, easy to install and durable.