Ceramic wave eyelet: is used for coiling machine and spinning and weaving fault silk location in mechanizing, is fault silk another piece in common use.
猪尾圈：猪尾圈用于绕线机和纺织机械化中的过丝部位，是常用的过丝另件。
2
Deep eyelet belongs to hard to be processed machine parts. It is widely used in engineering and practice. But it is very difficult to be machined by traditional cutting method.
深小孔件属于难加工的机械零件，在工程实际中应用极广，但却很难甚至无法采用常规切削加工。
3
After a long run test, the controller basic met system indicators of the eyelet buttonhole sewing machine, and has a very good practical application.