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

在点浇口式的模具道模具中也用到另一种式主道。

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

论述了道塑料注射成型的方法、工艺、设备和模具设计方面的问题。