pvc twin pipe extrusion line is developed with the 1990s advanced technology of West Europe by our company. The main machine is SJSZ 51/105 or SJSZ 65/132 conical twin-screw extruder, is equipped with double tube single-control stainless steel spraying shaper to form a production line. It avoids a waste condition when one tube is adjusted and the other one is affected. The auto single-control double haul offs and cutting are combined with the front shaping technology to make operation more flexible. Let you enjoy econo-mic benefit which is brought about by separately control double-tube extruding. The diameter of the extruded pipe is form 20mm-63mm. It can make fully use of the extruding capacity of the extruder. Even if it produces small diameter pipe, it can get great output, too.