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本文主要介绍弯曲■形零件成形和为减少板厚变薄所采取的工艺方法。并介绍了狭窄(?)形件的镦弯模结构,多工序弯曲不但用于多角复杂零
This article describes the bending ■ shaped parts forming and thinning to reduce the thickness of the process taken. And introduced the narrow (?) Shaped pieces of upset bending structure, multi-process bending not only for multi-angle complex zero