tapping screw thread 自攻螺纹
Thread Cutting Tapping Screws 螺纹切削自攻螺丝
Thread Forming Tapping Screws 螺纹成型自攻螺丝
Thread Rolling Tapping Screws 螺纹滚成自攻螺丝
thread forming tapping screw 螺纹挤压成形的自攻螺钉
thread cutting tapping screw 螺纹切削式自攻螺钉
thread-cutting tapping screw 螺纹切削自切螺钉
Tapping: refers to the workpiece within the processing of a thread process.
攻牙：指在工件上加工出内螺纹的工艺过程。
Impact tapping, as a novel technology of internal thread processing, has some important effect and a good applied foreground in the machining of small diameter thread, especially for thin board.
冲击攻丝作为一种新型的内螺纹加工技术，在解决小直径薄板内螺纹加工方面发挥着重要的作用，并具有良好的应用前景。
Conductive thread of a hole without cutting tapping new technology to solve the past conductive thread easily slip teeth of the defects.
导电件螺纹孔采用无切削攻丝新工艺，解决了已往导电件螺纹容易滑牙的缺陷。
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