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HDPE PE PP Hollow Wall Winding Spriral Corrugated Pipe Extrusion Production Line/Plastic Single Screw Extruder, Find Details and Price about Corrugated Pipe Extruder Machine PE Pipe Making Machine from HDPE PE PP Hollow Wall Winding Spriral Corrugated Pipe Extrusion Production Line/Plastic Single Screw Extruder - Zhangjiagang City Qiangsheng Plastic Machinery Co., Ltd.