(来学网)非贵金属烤瓷全冠的金属基底冠厚度应为
  • A.
    (来学网)0.03mm
  • B.
    (来学网)0.1mm
  • C.
    (来学网)0.3mm
  • D.
    (来学网)0.5mm
  • E.
    (来学网)0.7mm