- 锥形扩孔
- 钻埋头孔
- 钻锥坑
- 锪孔
- 锪锥孔
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countersinking中文什么意思
例句与用法
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- " countersunk head nib bolts " ploughshare " type
商业性通用螺栓制造.埋头尖螺栓 - Countersunk head rivets ; nominal diameters 10 to 36 mm
沉头铆钉.公称直径10至36mm - Detachable pilots for counterbores and countersinks
扩孔钻和沉头钻用可拆卸导杆 - Countersunk head screws - head configuration and gauging
埋头螺钉.头部外形和测量 - Slotted raised countersunk head screws with waisted shank
开槽半沉头不脱出螺钉