| 摘要 |
<p>The mechanism consists of a mould body in which a hole is machined toallow passage and location of extractor for expulsion of the moulded part, leaving the extractor perfectly seated inthe moulding position in its recess; compartments which allow withdrawal of sliding parts and are of hollow prismatic shape to receive the prismatic parts which remain perfectly fitting the internal faces of their respective compartments.</p> |
