Steel composite pipe provide the outstanding performance: 1) Saving 30% polyethylene materialthanmoemal corrugated pipe; 2) Good stiffness and flexible; 3) Electrofusion fittings easy connection; 4) Can modify your normal PE pipe line to the reinforced pipe. 5)larger diameters from 500 to 2200mm available. 6)lihgter weight than corrugated pipe in same stiffness.