For steelmaking plants, their main task is to desulfurize, dephosphorize, decarbonize and deoxidize the molten iron, and then cast the molten steel into steel billet. Therefore, there are many high-temperature workshops inside. Due to the special working conditions of the high-temperature workshop, the exposed cables and pipes are greatly threatened. The protection of pipeline in high temperature workshop has always been a difficult problem to ensure safety production. Beijing Great Pack high temperature sleeve can just solve this problem. The high temperature sleeve is made of alkali free glass fiber braided into a tube, then coated with silicone rubber and cured by heating. It has strong dielectric properties, high temperature resistance, heat resistance, good self extinguishing and flexibility, and also has certain insulation properties. For those staff who feel troubling, the high-temperature sleeve is indeed the gospel of high-temperature workshop, cable and pipeline high-temperature protection, which can ensure the safe operation of equipment in high-temperature environment, and reduce the replacement cost of cable and pipeline.