Based on the full absorption of German technology, HC Greesense Plastic Machinery has developed a new generation of multi-machine co-extruded large-diameter HDPE/PP hot-wound structural wall tube (carat tube) production line based on domestic raw materials and actual market conditions. In the production of no internal pressure sewage drainage pipe, the production has the advantages of low energy consumption, easy operation, high rigidity of the pipe ring and light weight. Provide complete equipment, installation, commissioning, training and other services for the production of hot-wound structural wall tubes.