Steel sleeve insulation steel pipe manufacturers, steel pipe insulation sleeve steel prices, steel pipe insulation sleeve Hebei Steel Standard: Contact: 13731709385 QQ: 929166756 CJ / T104 --- 2005 "urban heating buried steam pipe Technical Specification" one kind by the transmission medium steel, corrosion and superfine wool coat steel pipe and the jacket pipe is filled between the combination may also be used graphite, silicon calcium-watt bulb filled with polyurethane foam and composite. Steel casing (steel sleeve steel) buried technology is a waterproof, leakproof laying of new technologies, impermeability, compression and fully enclosed, is a major breakthrough Buried technology used in high water table areas. The primary issue of the protection tube buried pipeline is tight waterproof reliability, in addition to have good mechanical strength, high strength steel casing due to the use of welded connections, waterproof sealing performance reliability is very high. In addition, its high temperature performance is Other outer protective tube can not be compared. In areas of high water table, in order to ensure the normal operation of the steam does not affect groundwater buried pipe, outer protective layer is preferably made of sturdy, sealed steel casing. Company Address: Hebei Yanshan Puwa Zone