| 摘要 |
<p>The beading machine incorporates at the surface of a work block, a work groove (13) to rotate a drum (12) which grips and entrains the sheet metal (72) to be beaded. This work groove incorporates, internally on a part at least of its transverse section, at least one sliding lining (25A, 25B) of synthetic material. This runs longitudinally on at least a part of its length, participating in the formation of its internal surface. <IMAGE></p> |
