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图1所示的钻模是钻法兰孔常用的结构。使用中工件、钻模板和紧固螺母反复取上取下,装夹速度慢、劳
The drill shown in Figure 1 is a commonly used structure for drilling flange holes. Use the workpiece, drilling template and tighten the nut repeatedly removed, the clamping speed is slow, labor