| 摘要 |
A continuous injection moulding machine for sliding clasp fastener strips comprises a rotating disc with an annular groove around its perimeter, through which the basic support strip is passed. - Opposed pairs of claws radially mounted in this annular groove constitute the half-moulds for forming the teeth of the fastener; these claws are pressed together to form closed moulds in the vicinity of the injection moulding machine and are prised apart to open in the opposite part of the circumferential path.
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