Qingdao Sun Joy Plastic Machinery Co.,Ltd is located in Qingdao Jiaozhou Bay with beautiful environment and convenient traffic. Our company is a professional manufacture for every kinds of plastic machinery and conical twin-screw extruder. We have abundant technical skills, advanced production technology, production experienced and full equipped debugger checking equipments. Main production line include: WPC machinery, PVC/PP/PE/ABS profile extrusion line, Large diameter HDPE pipe extrusion line, XPS Foamed plate production line, Siding panel extrusion line ect., We always persist the policy of high quality but reasonable price, advanced technique, perfect services and scientific management to supply you with perfect plastic machinery. http://www.sj-extrusion.com/