| 摘要 |
An expandable electric cord having a core portion, a conductor portion and a sheath portion; wherein the core portion is an elastic cylinder having an elastic body and an intermediate layer covering the outer periphery thereof. The conductor portion contains a conductor wire having narrow stranded wires, with the conductor wire being coiled and/or braided around the outer periphery of the elastic cylinder, and the sheath portion is an outer sheath layer having an insulator that covers the outer periphery of the conductor portion. |
