Specification :

1 Product Specification( mm)
¦ 200 ¦ 400 ¦ 600 ¦ 800 ¦ 1000 ¦ 1500 ¦ 2000 ¦ 2600 ¦ 3000
¦ 300 ¦ 500 ¦ 700 ¦ 900 ¦ 1200 ¦ 1800 ¦ 2200 ¦ 2800
Each specification divides two grades, ring rigidity S1 is 4KN/ M2 , S2 is 8KN/ M2

2 Application & Features
We succeed in researching the large caliber hollow wall twine pipes production lines on the foundation of abundantly absorbing and digesting European technology . The pipes we produced base on high density polythene ( PE) as main material. The rectangle pipes are extruded by the first extruder and then enter into the twine form machine , at the same time , the second extruder spray the rubber strips and then squeeze to reunite it , It outside wall is neat and smooth . Specification is ¦ 400-¦ 2500mm. According to different usage term, the hardness degree of ring is divided into four grades and the Max can reach 16KN/ m2. It is suitable for the sour alkali liquid below 10% . This kind of pipes have many extremely excellent characteristics, such as corrosion resistant light , easy to fix , long life time ( 50years) , etc , It can substitute the pipes made of high energy consumption material ( cement , cast iron , porcelain and ceramics , etc) . lt is widely used for sewer in superhighway, municipal construction , flats , athletic field, square , mine agriculture , and bridges etc.