Machining the spark plug hole and counter bore at a compound Angle.
加工火花塞孔与反孔的复合角度。
Using once counter bore grinding technology can overcome these weakness, and its accuracy is able to achieve technical request of finished product and satisfy productive needs.
一次锁口磨削工艺过程能够克服上述缺点，而且它在各项精度方面都能达到成品零件的技术要求，满足生产需要。
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