| 摘要 |
<p>Specially designed to form an element that is easy and fast to install, with a long useful life and which improves the expulsion of residues after stamping, the counter-die of the invention is composed of a tubular body, divided into several parts (1-1'-1") and joined to each other by tongue and groove joints using twisted edges (2) at the ends, preferentially three parts, these having an inner sector (3) which is the largest, of injected plastic, very resistant and light, over the exterior surface of which there is a coating (4) of polyurethane. The parts are joined to each other by orifices and grooves in their ends, more specifically in the area made of injected plastic, through which the respective rods or pins (11) pass.</p> |
