(来学网)PFM全冠金属基底部分的厚度为
  • A.
    (来学网)0.1~0.3mm
  • B.
    (来学网)0.3~0.5mm
  • C.
    (来学网)0.5~0.8mm
  • D.
    (来学网)0.8~1.0mm
  • E.
    (来学网)1.0~1.2mm