圆弧地台和圆弧顶封板的极限可加工高度是多少()


圆弧地台和圆弧顶封板的极限可加工高度是多少()

A.120mm

B.130mm

C.140mm

D.150mm(正确答案)


Tag:岗位技能知识竞赛 圆弧 时间:2021-09-07 13:28:50