METAL COMPOSITE PLASTIC TUBE

摘要

PROBLEM TO BE SOLVED: To provide a metal composite plastic tube capable of detecting gas leakage when gas leaks into a spiral gap of a metal band winding reinforcing layer. SOLUTION: The metal band winding reinforcing layer 4 is provided by winding a metal band 4a around an outer periphery of a plastic inner tube 2. A plastic coating layer 6 is provided on an outer periphery of the metal band winding reinforcing layer 4. A gas detection hole 10 reaching the metal band winding reinforcing layer 4 is provided at any one portion of the plastic coating layer 6.