Insulation of life up to 50 years buried insulating pipe manufacturers, than the traditional trench laying, row strike laid high life 3--4 times. Much lower than other pipe insulation material used in the past, progress 4-9 times the insulation effect. Further its low water absorption steel jacket buried pipe insulation, about 0.2kg / m2. The reason is because of low water absorption rate of closed-cell polyurethane foam about 92%. Insulation pipe steel casing (steel jacket) embedded technology is a new technology embedded waterproof, leakproof, impermeability, compression and fully enclosed, is a major breakthrough Buried technology used in high water table areas . It is a combination of the transmission medium pipe, steel pipe anti-corrosion coat and superfine wool padding between the pipe and the jacket is made of steel, but also can be graphite, calcium silicon tile shell filled with polyurethane foam and composite. Composite steel jacket pipe insulation | Kodak prefabricated polyurethane tube (Online) | insulation provided by Kodak Building Materials Co., Weifang. Weifang Kodak Building Material Co., Ltd. (www.wfkdjc.com) Shandong Weifang, other leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Kodak leadership with the staff warmly welcome all inquiries negotiations to create a better future subjects.