Qingdao zhonghongjian enerygy technology co., ltd specializes in plastic machanical design and manufacturing companies,main products of pp,pc holowness grid board production line,pe,pp,ps abs ,pc pmma board /sheet production line,pvc foamed/crust foamed /wpc foamed board production line,pvc floor making machine,hdpe.ldpe,pp-r,pe-rt water /gas supply pipe production line,pvc,pe single /double wall corrugated pipe production line, u-pvc water supply and drainage pipe production line. Pp,pet strapping band production line. Pe,pp.pvc wood composite(wpc) board /profile production line. Single screw extruders ,twin screw extruders and so on. The company’s products are windely used in large ,medium and small enterprises all over the country,and are exported to russia,turkmen,southeast,asia,africa and other countries and regions.with high quality,high efficiency, precision and energy saving as the quality goal,the company aims at honesty and pragmatism, and is full of ambition, with high quality performance, technical support and after-sales service to provide customers with promise and  guarantee, to become a bright pearl in the plastic machine industry.