该机构能减少推动力，可解决结构空间受限制、深度很大制件内部抽芯脱模问题。
It can reduce driving power and resolve the problem of the internal core-pulling about products with the limited space and large deep.
该机构能减少推动力，可解决结构空间受限制、深度很大制件内部抽芯脱模问题。
It can reduce driving power and resolve the problem of the internal core-pulling about products with the limited space and large deep.
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