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“打孔”也有学问，10秒换2“钻头”、真不是为了“秀”手艺！
加工项目操作：铣床“打孔”视频分享！
铣床加工中的一些操作技巧分享！8/10
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App02:16打开App观看
加工项目操作：铣床“打孔”视频分享！
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