- multiple thread hob
- multiple-thread hob
- 多头: bull; long multipoint; multi ...
- 螺纹滚刀: thread cutting hobbing
- 单头螺纹滚刀: single thread hob; single-thread hob
- 螺纹滚刀: threading hob
- 多头螺纹: multi start screw thread; multi start thread; multi thread; multi-start screw thread; multi-start thread; multi-startthread; multi-stethread; multithread; multiple screw thread; multiple start screw thread; multiple thread; multiple-start screw thread; multiplex thread
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