| 摘要 |
<p>Prodn. of rubber-elastic articles with tension supporting inserts, by placing a pre-form containing the insert, the content of rubber elastic material of which is less than that required for the finished article, in a transfer injection mould cavity and introducing the required material using a transfer injection moulding technique. Pref. the pre-form has the correct amt. of rubber-elastic material on one face and the injection of further material is confined to the other face.</p> |
