Impervious, heat -resisting, anticorrosive pipe -line system

The utility model discloses impervious, heat -resisting, anticorrosive pipe -line system belongs to compound pipe -line system, and the steel is moulded the complex and is managed, including interior, domestic and abroad three -layer, polyethylene (the PE of inlayer for adopting the production of radiation crosslinking technology xc, ) pipe, the outer thin wall steel tube that is, the ectonexine utilizes the hot melt adhesive bonding together, it forms even to set up outer tube spiral shell knot and lock nut cooperation in the special coupling main part. The suit tube head surface that extends from main part spiral shell knot is toper sealing station, and suit herein on the sealing station after the flaring of compound pipe, lock nut overlap to be gone up, buckle, make the tubular locking of the interior male cone (strobilus masculinus) platform that extends from its thread end to compress tightly to manage in the complex and form sealing connection with the help of the threaded connection of its internal sur