针对减振器总成工艺过程的改变，采用凹模浮动，实现双向同步冲孔；
According to the change of technologic process, adopting the floating concave mould, bidirectional punch in the same time was realized;
针对减振器总成工艺过程的改变，采用凹模浮动，实现双向同步冲孔；
According to the change of technologic process, adopting the floating concave mould, bidirectional punch in the same time was realized;
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