When long-rod type forgings drop-forged, fullering and edging are often selected as preform operations.

在锤上模锻长杆类锻件时，常用滚挤和拔长工步进行制坯。

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When long-rod type forgings drop-forged, fullering and edging are often selected as preform operations.

在锤上模锻长杆类锻件时，常用滚挤和拔长工步进行制坯。

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