Product Description 1.The pipes are extruded by the first extruder and then enter the twist form machine, at the same time the basket co-extrusion mould forms pipes' shape. 2.The pipes are based on high density PE as main raw material. Main advantage: 1.This kind of pipes have many advantages, such as corrosion resistant light, easy to fix, long time to use etc. 2.The pipes are widely used in high-way, municipal constructional, flats and so on. Process line: Raw material+master batches→mixing → vacuum feeding → material dryness → single screw extruder → basket co-extrusion mould → calibrator → spray vacuum calibration tank → spray cooling water tank → belt haul-off → single screw glue extruder → winder → winding roller forming → water cooler → pipe rack → finished product. Technical Parameter