Qingdao Shansu has more than 10 years working experience of plastic extrusion machine manufacture, unique understanding of Plastic machinery technology and skills. We have R&D Department of our own and strict QC control system. Our machines include three main series-plastic pipe extrusion line, plastic profile extrusion line, plastic sheet extrusion line. Main products include: HDPE Pipe Production Line, PVC Conduct Pipe Production Line, PVC/WPC Profile Production Line,...