2.The pipes are based on high density PE as main raw material.
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 inspecting&packing
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.