结构特点：　　1)具有优良的抗腐蚀性能　　不要阴极防腐保护及其它防腐措施，不会对水和其它介质产生二次污染。产品使用寿命长。　　(2)重量轻　　管道重量仅占同规格、同长度球墨铸铁管的1/4，水泥管道的1/10。运输装卸方便，易于安装。　　(3)单根管道长度长　　减少管线接头，加速安装速度，提高整条管线质量。　　(4)管壁内壁光滑　　减少流阻、提高流速、降低能耗。用较小口径的管道输送同等流量的流体，与同规格钢管相比可提高流量的10%左右；不结垢，长期使用不降低流速。扰和重蚀环境中电缆的防护都有较好效果。　　 The structure features: 1) excellent corrosion resistance, no cathodic protection and other anti-corrosion measures, no secondary pollution to water and other media. Long service life. (2) weight light pipe weight is only one quarter of the same size as the same length ductile iron pipe, and 1/10 of the cement pipe. Convenient transportation, easy installation. (3) the length of the single pipe length reduces the pipe joint, speeds up the installation speed and improves the quality of the whole pipeline. (4) smooth reduction of flow resistance, increase of flow rate and energy consumption. The flow of the same flow with the smaller diameter of the pipe can increase the flow rate by about 10% compared with the steel tube. Without scaling, long-term use does not reduce the flow rate. The protection of cable in the environment of disturbance and heavy erosion has good effect.