Qingdao Royal Machinery as an ISO9001 and CE certified manufacturer in plastic machinery in China, we supply our customers with various models of pipe, profile, sheet and board extrusion lines as well as other auxiliary machines, which consists of PVC pipe extrusion line, PE pipe line, PPR pipe extruder, PVC fiber hose machine, PVC profile line, PVC door profile plant, PE wood plastic profile line, WPC machine, PE plate line, PVC sheet line, PET sheet line, HIPS sheet line, PC hollow grid sheet line, PE corrugated pipe line and other plastic extrusion lines. As one of the professional...