| 摘要 |
<p>Injection moulding device has the head provided with an orifice composed of members forming between them injection ducts which communicate with the supply duct in the head, and which support a circular array of peripherally spaced rhomboidal members. The members form duct between them and enclose an annular duct associated with a peripheral array of channels, communicating with the atmos. and terminating in a mouthpiece, respectively. The device provides injection moulding pipes having hollow alls sub-divided by radial webs into longitudinally extending compartments. Pipes may be formed into packaging containers.</p> |
