Product Features: 1, pressure, shock: steel and plastic perfect combination of pipe using advanced steel forming and composite pipe reliable composite, and enhance pipe performance, improve the pipe performance, an increase of the pipe ring stiffness, strength impact, has a good adaptability to any foundation; resistance, chemical resistance: will not be sewage, wastewater and chemical corrosion, will not rot in the soil material and corrosion will not be damaged by plant roots; 3, anti-aging: the pipe is generally black to bear the brunt of the sun in the stacking and construction process; superior wear-resistance: steel, cast iron pipe, cement pipe wear-resistant; excellent drainage liquidity: the inner wall flow resistance is small, fast drainage through hydro strong flow. 
 Scope: 1, municipal engineering rain, sewage, industrial wastewater discharge, water conservancy and other major type is especially useful life longer works 



 Supply steel strip reinforced spiral corrugated tube 
 Model: DN300mm-DN2200mm The 
 Specifications: DN300mm-DN2200mm The