Proper layout of draw bead is one of the key ways on controlling forming quality of ram parts in automobile panel formation.
合理布置拉延筋是汽车覆盖件成形中控制冲压件成形质量的主要手段之一。
Proper layout of draw bead is one of the key ways on controlling forming quality of ram parts in automobile panel formation.
合理布置拉延筋是汽车覆盖件成形中控制冲压件成形质量的主要手段之一。
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