In addition to improving the service life of steel pipe through anti-corrosion, the specific performance is also in the following aspects:
1. The inner wall friction coefficient is small, 0.0081-0.091, reducing energy consumption.
2. The inner wall meets the national health standards.
3. The inner wall is smooth and not easy to scale, with self-cleaning function.
4. Combine the mechanical strength of steel pipe and corrosion resistance of plastic in one.
5. The outer wall coating is more than 2.5mm, resistant to scratch and knock.
