The the steel liner polypropylene (PP) anti-corrosion pipeline domestic development in recent years, a new type of piping material, the Zhaohui anti-corrosion technology matrix surface coated with a layer of plastic film, steel pipe, steel pipe. Layer which can use a liquid plastic coating, also available solid plastic coated, making the product has both high strength and high stiffness of the steel pipe steel liner PP anticorrosion pipeline, but also has the plastic chemical resistance, high strength, corrosion-resistant good performance, do not crack, not aging, low cost, wide application, long life, installation, and easy maintenance features. Smooth, the surface of the steel pipe and a small coefficient of resistance in the conveying liquid, not mixed endophytic bacteria, have a good anti-lipid, anti-fouling ability, than the large diameter pipe conveying fluid from 10% to 20% in the general case, The transport power consumption is reduced by 15% or more, and extend the life of more than 10 times. Therefore we can say, the steel liner PP anti-corrosion pipe is energy efficient new pipe materials and anti-corrosion medium temperature: -25 ° C to 100 ° C medium working pressure: positive pressure 0.6MPa 2.5MPa negative pressure room temperature for 94Kpa. Corrosion resistance: In addition to the strong oxidizing acids, concentrated nitric acid, fuming sulfuric acid, chlorosulfonic acid, the ability of most organic and inorganic acids, alkalis, salt, stress corrosion, corrosion resistance, and ability to less than 10% of the nitrate , formic acid, acetic acid, hydrochloric acid of 36% or less, less than 20% hydrobromic acid, alkenyl hydrofluoric acid, and various concentrations of carbonic acid, boric acid, butyric acid, alkali, and the vast majority of salt, mercury, air and NH3, CO2, corrosive gases such as CO, NO2, NCL. Usage: apply to non-toxic and non-polluting industries such as beverage, food, brewing, pharmaceutical, water and other requirements