hexagonal-head bolt

• 六角螺栓

hexagonal-head bolt的用法和样例：

例句

1. It shows that with the control over the friction factor, near-net-shape forming of hexagonal bolts can be achieved.
   另外成形方案四模拟结果显示，有进行模仁表面粗糙度之控制，可达成六角螺栓近净形成形的目标。