| 摘要 |
<p>A punching die (11) for punching a sheet of inorganic fiber mat (16) to manufacture a holding seal member (15) for winding around an exhaust gas purifier body (21). The punching die includes a base plate (12). A donble-edged punching blade (13), supported by the base plate, punches the inorganic fiber mat to cut out the holding seal member.</p> |
