| 摘要 |
<p>PURPOSE:To efficiently mount a fitting, such as a bolt or a nut, even on a resin box produced by vacuum forming or compression molding without a hole or a mark remaining on the part externally viewed. CONSTITUTION:To a fitting, such as a bolt or a nut, a resin piece 4 which can stably hold it is fixed. The fitting is welded to a required part of a resin box 1 through the resin piece by an ultrasonic plastic welder 5.</p> |
