①具有优良的耐腐蚀性能。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。 It has excellent corrosion resistance. Do not use cathodic protection and other anti-corrosion measures to produce two contamination of water and other media. Long service life of products. ②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。 The weight of the pipe is only 1/4 of the same size and same length as that of the ductile iron pipe and 1/10 of the cement pipe. The transportation is easy to handle and easy to install. ③减少管线接头，加速安装速度，提高整条管线质量。 Reduce pipeline connection, speed up installation and improve the quality of the whole pipeline. ④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。干扰和重蚀环境中电缆的防护都有较好效果。 Reduce flow resistance, increase flow speed and reduce energy consumption. Compared with the same size steel pipe, the flow rate of the same volume can be increased by about 10%, and no fouling and long-term use can not reduce the flow rate. Interference and heavy corrosion in the environment of cable protection have good results.