Spiral Steel pipe with plastic pipe has excellent physical properties

　　Spiral Steel pipe with plastic pipe has excellent physical properties. Has excellent corrosion resistance. Health non-toxic, non-fouling, non-breeding micro-organisms, DN700 spiral steel pipe to ensure fluid wind. Resistant to chemical corrosion, soil and marine biological corrosion resistance, resistance to cathode stripping. Resettlement process is mature, convenient and quick. Weathering is good, practical desert, saline and other harsh environments.