The production line with the Company's advanced technology development in Western Europe from the late nineties. Host SJZ51/105 or SJZ65/132 conical twin-screw extruder, together with the dual single-control stainless steel spraying stereotypes, production adjusted to avoid a waste of another tube, automatic dual single control traction machine and cutting integration with the front shaping technology to make operation more flexible, allowing you to separately control the two-pronged enjoy the benefits of double tube extrusion diameter from Φ20-Φ63, to take advantage of the extrusion extruder capacity, even if the production of small diameter pipe, it can achieve high yields.