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一种新型的密封式管道钻孔攻丝机已由重庆大足供水设备厂研制成功(见图)。其特点是:在管道上钻孔攻丝,不防碍正常供水。该机的操作程序为:1、装机。首先在管道打眼部位安放附有胶垫的马鞍;然后将带有复合丝
A new type of sealed pipe drilling tapping machine has been successfully developed by Chongqing Dazu Water Supply Equipment Factory (see photo). Its features are: drilling in the pipe tapping, does not hinder the normal water supply. The machine’s operating procedures: 1, installed. First place a saddle with a pad in the drill hole in the pipe; then with the composite wire