| Company profile: Raw material plastic matorial knit pipe is HDPE), corrosion resistant, acid and alkali resistant, prevention of prestressed muscle from boing erosion. Many prestressed structure seriously affect suffor from environment, such as equipment salt or brine. No permanent metal anticorrosion ability, can't rosist water, but lcakage plastic wrinkling has the ability to provide a barrier protection injurant prestressed muscle, prevent pollution through pipes, therefore, good pordurable prestressed structure performance guarantee. In the same condition, the friction coefficient preset hole, plastic wrinkling tube obviously lower than metal pipe, reducing friction loss of prestress process of tension. Generally speaking, friclion coefficient 0.14 plastic pipe, For tube is 0.25, plastic pipe has high intensity, the bearing jam, now the sealing performance and leakage resistance significantly better than metal pipe, suits the vacuum grouting. Don't appliances. |