铸造全冠(来学网)面的间隙要求在
  • A.
    (来学网)0.2~0.5mm
  • B.
    (来学网)0.5~1.0mm
  • C.
    (来学网)0~1.5mm
  • D.
    (来学网)0.5~2.0mm
  • E.
    (来学网)0~2.5mm