Metal hollow article, its manufacturing method, metal tube and electro discharge machining electrode

Conventional manufacturing method, it is difficult to use plastic working of metal small diameter hollow metal body has been problematic; the smaller the diameter, the higher the cost of manufacturing, and in some cases, manufacturing is not possible. The plurality of metal twisted wire made of a wire harness, adjacent metal wires in the contact portion in contact with the plane, and the wire harness formed by integrally provided along the outside of the consolidation method, and thus may be manufactured having a uniform internal metal hollow body and the diameter of the interior surface neat.