Composite tube

The utility model provides a composite tube which comprises an inner layer and an outer layer. The composite tube is characterized in that an interlayer is arranged between the inner layer and the outer layer, the interlayer and the inner layer are connected through special hot melt adhesive A, and the interlayer and the outer layer are connected through hot melt adhesive B. Disconnection of a tube body due to the fact that bonding of plastic steel materials is weak and changes along with the temperature is effectively avoided. The inner layer and the outer layer are both high-density polyethylene (HDPE) layers. The surface of a steel wire mesh layer is plated with a copper layer so that the steel wire mesh layer can have a reliable electrochemistry anti-corrosion ability. The composite tube integrates advantages of steel and plastic materials and has excellent comprehensive property. The steel wire mesh layer enables the composite tube to have innate traceable property, a tracing device does not need to be e