| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To lighten a rod used for an armor rod or a spiral rod. <P>SOLUTION: The rod member of an armor rod or a spiral rod is made in the shape of a pipe, and it is made so that the rod members can be connected with each other using a new member, and further it is made so that a cap member can be attached to the end. <P>COPYRIGHT: (C)2004,JPO</p> |
