application: steel lining pu dual anti pipe has excellent abrasion resistant, acid and alkali resistance, anti-fouling, and that radiation, hydrolysis aging, high elasticity, resistance to mechanical shock etc. It can be widely used in electric power, coal, mining, building materials, chemical industry, transport it over coal, ash, slag, molten aluminum, mud and other particles sharpening materials and corrosive media. Advantages: 1, Good insulation properties, low heat loss, is 25% of the traditional pipe, long-term use can save a lot of energy. 2, Construction convenient, lower total cost, has excellent corrosion resistance, impact resistance. 3, Long life, up to 30-50 years. 4, Installation costs low.