We,Zhangjiagang Qiangsheng Plastic Machinery CO.,LTD, is professional manufacturer in plastic extruder machine for nearly 30 years. Main product: PVC pipe extrusion machine PE PPR pipe extrusion machine PVC Pelletizing machine PVC foam board production line Pe single wall corrugated pipe machine PVC profile production line UPVC window and door making machine Plastc recycling pelletizing machine