... and dismantle, transportation are convenient, shorten the time, improve efficiency, so as to avoid the pipeline welding together to repair and replacement pipe time-consuming ... and external force impact, Plastic pipe can be directly connected, in the water it can bend, 4-8 pieces can bend 360 ... used at - 40-60 ° c, can adapt to bad weather changes in temperature.6. HDPE Sand Delivery Pipe is either on ...