The line is used for extrusion of PP-R, PEX or PE-RT pipes. PP-R pipe are non-toxic, heat-resistant.It can be easily welded by hot-melting method and recycleable. PEX pipes have excellent temperature resistance character. PE-RT pipe does not need the cross-link process, and it can also be recycled. This line is assembled lattice or spiral mould. Two section vacuum calibration unit and spraying cooling bath. After simply changing the mould, it also becomes possible to produce ABS,PP composite pipe.