Main products are high efficiency extrusion production line of PPR, PERT and PEX-B tubes. HDPE high speed PE water gas supply tube extrusion line, stable PPR-Al pipe material production line and fiber glass reinforced PP-R tube material. High efficiency production line of PEX-A cross-link tube material production lines of kind of tubes, tubes of profiled shapes and tubes of large caliber etc, single and double screw extruders