在喷涂前，对轴类零件粗车螺纹并进行挤压，使基体表面形成钩子形状，增加喷涂层和基体的机械结合力；
Before spraying, the axes are turned out screw thread and extruded, thus many hooks are arranged on the surface of parts, it strengthens the mechanical combination of spraying layer and substrate;
车有螺纹的颈环固定在钢瓶的锥形端，可以安装保护性瓶帽。
A threaded neck ring is secured to the tapered end of the cylinder to allow a protective cylinder cap to be installed.
攻丝是在一个孔中车出螺纹，以便装上有帽螺钉或螺栓。
Tapping is the process of cutting a thread inside a hole so that a cap screw or bolt may be threaded into it.
筷子或勺子均不抛光或者仅外侧抛光，筷子下端是车出来的螺纹，可防止夹菜的时候滑。
Chopsticks or spoons are not polished or polished outside only, chopsticks out of the car bottom is threaded to prevent their food when the slide.
筷子或勺子均不抛光或者仅外侧抛光，筷子下端是车出来的螺纹，可防止夹菜的时候滑。
Chopsticks or spoons are not polished or polished outside only, chopsticks out of the car bottom is threaded to prevent their food when the slide.
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