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French cable , also known as bullion or gimp , is a fine silver coil or gold wire used by a jewelry dealer to hide the next bead wire to curls and tongs. Proponents argue that the French wire provides an elegant and professional display jewelry while also protecting and strengthening the beadwork ends. Also widely available in gold and silver-plated wires, this cheaper version is more commonly used by hobby lovers in seed beads and knotted pearl projects.
Video French wire
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Source of the article : Wikipedia