A modified form of sprue gate is also used on underfeed moulds and runnerless moulds.

在点浇口式的具或无具中也用到另一种式主。

The molding method,process,and the equipment of thermoset runnerless injection molding have been discussed in this paper.

论述了无固性塑料注射成型的方法、工艺、设备和具设计方面的问题。