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过去在鍛钎机上鍛制(如图1所示)一根正规钎尾需要三次工序:(1)冲钎尾領盘;(2)冲钎尾水眼;(3)在砂輪上磨倒角。
In the past on the forging machine forging (shown in Figure 1) a regular drill tip requires three processes: (1) Chong Wei tail collar; (2) flushing tail water eye; (3) grinding wheel grinding chamfer .