Qingdao Royal-tech Machinery Co.,Ltd , is one of the leading plastic machinery manufacturer and located in beautiful seaside city:Qingdao. Our main products: HDPE large caliber water /gas pipe extrusion line, PVC,UPVC pipe extrusion line, , PPR water supply pipe extrusion line, PE,PP,PVC single wall corrugated pipe extrusion line, PVC fiber reinforce hose extrusion line, WPC profile extrusion line, PVC window profile extrusion line, PVC wide door board profile extrusion line, PE, PP, PS, ABS,PVC, PET, PETG sheet extrusion line, etc. » Read More