cross piercing
短语词组
- cross roll piercing 斜軋穿孔
- the cross rolling piercing 斜軋穿孔
- two roll cross piercing 二輥斜軋穿孔
- hot cross piercing 熱軋穿孔
- cross piercing process 斜軋穿孔工藝
- two -cross-roll piercing process 二輥斜軋穿孔
- piercing screwdriver Cross -head 穿心起子十字 返回 cross piercing