Heavy caliber enlacing ribbed tube product lineThis product line has many characters as below:1. Adopt high efficient PE special purpose screw, and ensure high efficient extrusion. 2. Unique and skillful shaping technique, it can produce tubing form diameter 300mm to 3500mm extra heavy caliber structure.3. Having the capacity of online flaring, and it can reduce the equipment investment.4. Adopt electric smelting joint, and need not specific pipefitting joint. The construction is easy and the joint is reliable.