The manufacturers find it difficult to detect the steel pipes with extra deep internal thread groove if they do not meet the relative quality standards.
内螺纹槽超深的钢管不符合相关质量标准，但生产厂却难以检测出内螺纹超深的钢管。
Radial distortion of the flexible component in the stop valve can be adjusted so as to ensure the joint depth between flexible screw thread trepanning circular groove and screw thread on the screw.
截止阀的柔性元件的径向变形值可以调节，保证柔性螺纹套的环槽与螺杆上的螺纹的接合深度。
With cars, milling, boring, drilling four automation function, can be turning sphere, cylinder, cone, thread, tapping, end face, inner and outer ring groove, etc.
具有车、铣、镗、钻四大自动化功能，可车削球面、柱面、锥面、螺纹、攻丝、端面、内外环槽等。
The lathe tool with simple structure can carry out multiple processing of turning the inner and the outer thread, the inner and the outer groove, the boring and the outer circle.
该刀结构简单，可进行车削内外螺纹、内外沟槽、镗孔、外圆等多种加工。
After processing LET thread, stress groove and double shoulder connection for the NC35 thread of Drill Collar in 43/4 inch, torsion tests were done.
4英寸）钻铤NC35螺纹加工LE螺纹、应力槽、双台肩后进行了实物抗扭性能试验，证实双台肩钻铤具有很好的抗扭性能。
The locking bolt is provided with an outer thread mating with the expansion pipe at the peripheral surface and has a groove at one end.
一锁定螺栓，其周面上具有与膨胀管相匹配的外螺纹，并在其一端设有凹槽。
Our factory has the nineties the world's most advanced high-precision thread grinder, tap grinder, powerful groove grinder, diamond grinding wheel repair machine and thread-based testing equipment.
我厂具有九十年代世界最先进的高精度螺纹磨床、丝锥磨床、强力沟槽磨床、金刚石砂轮修型机床及螺纹检测设备。
The utility model relates to a medical orthopaedics left-hand drill bit for drilling a left-hand thread hole. A metal drill rod is carved with a left-hand groove.
本实用新型涉及一种可以钻左旋丝孔的骨科医用左旋钻头，它是在一个金 属钻杆上镂刻有左旋凹槽。
The utility model relates to a medical orthopaedics left-hand drill bit for drilling a left-hand thread hole. A metal drill rod is carved with a left-hand groove.
本实用新型涉及一种可以钻左旋丝孔的骨科医用左旋钻头，它是在一个金 属钻杆上镂刻有左旋凹槽。
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