PPH is from PP pipe, PPH pipe is made of PP tube through beta modification,Make its beta with uniform fine crystal structure. PPH pipe have a long service life, it can be used for 50 years under the certain temperature and the same pressure. Excellent anti-corrosive performance, it have resistance to chemical corrosion and can tolerate over a wide range of PH range between 1-14 under high concentration of acid and alkali corrosion. Has high stiffness, it has glass fiber in it thus the pipe is hard to have deformation. Heat resistance, heat preservation and energy conservation, the highest temperature it can tolerate is 115 degree centigrade and it's coefficient of thermal conductivity it is the 1/20 of the steel pipe, so it has a good heat preservation performance. Reliable connection performance, the stiffness of the hot melt interface is higher than the pipe body, the seam wont break because the move of the soil Easy to construct, it is light and the welding process is sample easy to construct and it cost a little. It can conveying the chemical and The pharmaceutical wasted water and drinking water.It can also used on agricultural to conveying the Irrigation water and conveying the heat and cold water.