1、化学性能稳定、不老化、其强度随时问延长而有所增加。
1. The chemical properties are stable, non-ageing, and the strength increases with time.
2、耐腐蚀、不磁化。
2. Corrosion resistance and non-magnetization.
3、内壁光滑，粗糙系数为0.07，不伤电缆。
3. The inner wall is smooth, the roughness coefficient is 0.07, and the cable is not damaged.
4、价格低廉，结构简单，施工方便。
4. Low price, simple structure and convenient construction.
5、加工性能好，安装允许有6°转角。
5. Good machinability, 6 degree rotation allowed for installation.
6、载流量高，敷设系数高于PVC管材10个百分点。
6. High carrying capacity and 10 percentage points higher laying coefficient than PVC pipe.