发布日期 ： 2021-01-26 06:57:25 UTC
分类 ： Mechanical
Long round hole truncated center point
<img src="http://drr.ikcest.org/static/upload/f4/f4430d9e-ee5b-11e9-89ca-00163e0618d6_m.jpg" />
Long circular hole alignment straight alignment center point
<img src="http://drr.ikcest.org/static/upload/08/088197b2-ee5c-11e9-af41-00163e0618d6_m.jpg" />