Hantai buckle type fireproof sleeve is made of 9 micron alkali free glass fiber braided and coated with high-temperature organic heat-resistant silica gel by high-temperature vulcanization. It is easy to dismantle and install the sleeve by adding flame-retardant nylon fastener structure. It also has excellent high-temperature fireproof performance and heat insulation effect. Flame retardant grade is VW-1, insulation grade is ≥ 7kv, tensile strength is ≥ 5.5mpa, tear strength is ≥ 10kN / m, The elongation of the product is more than 200% and the hardness is 40-45shore a. The products are widely used in robot, metallurgical casting, high temperature protection of hydraulic fluid pipeline, medium frequency induction furnace, rail transit, harness, cable, metal hose and other harsh environment.