... take into account length.production line is reliable performance, and high quality... Main Applications 1. Water supply and drainage pipelines in building ... smooth, inner wall surface tension, it is difficult to form scale, the fluid transport capacity of 43.7% higher than the ... electrical properties of resistance, volume resistance of 1 to 3 x 105Ω.cm, breakdown voltage 23 to 2kv/mm;7. The ...