Qingdao Yifeng Plastic Machinery Co.,Ltd.is specialized in the design and produce the huge calibre hollowness wall winding pipe production line,company absorbs latest technology of home and abroad,development of large diameter HDPE buried and coil pipe production line and large diameter FR - PP coil pipe production line can produce the diameter of φ200- φ2000 quality drainage. The pipe is becoming the mainstream of urban drainage pipe products and will gradually replacing steel, cement, and other plastic tubing.That production line contain profile tube extruder, melting connection extruder, winding forming machine, cutting machine, and related auxiliary device, having great production capacity, high efficiency, stable operating, high pipe circle rigidity, little unit meter weight, fine creep deformation resistant performance, convenience connection and economic installation.