(来学网)铸造全冠颈部肩台通常为多少毫米宽?()
  • A.
    (来学网)0.3~0.4
  • B.
    (来学网)0.5~0.8
  • C.
    (来学网)0.9~1.0
  • D.
    (来学网)1.0~1.2
  • E.
    (来学网)1.2~1.5