(深孔)分段钻削
Design of Two Worktable Milling and Drilling Special Machine to Motor Casing by NC Technique And two constructional types of progressive dies with two-step blanking is researched and developed, two stations two steps and three stations three steps construction types.
两工位数控专用电机壳铣钻床研制给出了两步法冲裁级进模的两种结构形式:两工位两工步和三工位两工步结构形式。
英语网 · 中考英语
英语网 · 高考英语
英语网 · 双语娱乐资讯