Qingdao Yifeng Plastic Machinery Co., Ltd.is specialized in the design,manufacturer of PVC Single/Double Wall Corrugated Pipe Production Line.It is a new products designed by ourselves on the basis of overseas advanced technology. Mainly using PVC as the main raw material, the set is used to produce single or double wall corrugated pipe. The product has the advantages of light weight , high corrosion resistance and cooling and heat resistance. It is mainly used in such fields as communication, electric wire cable laying and bridge cable sheath,agricultural irrigation, city water drainage(supply), irrigation the ground, and up and down water area of buildings ect. Qingdao Yifeng Plastic Machinery Co., Ltd. principal products（Website：http://www.yifengjixie.com/en）HDPE vacuum corrugated pipe unit 、HDPE carbon fiber spiral coil unit、PVC plastic hard tube extruding production line（Website http://www.yifengjixie.com/en）