(来学网)圆锥形套筒冠固位体内冠厚度一般控制在()
  • A.
    (来学网)0.2mm
  • B.
    (来学网)0.3mm
  • C.
    (来学网)0.4mm
  • D.
    (来学网)0.5mm
  • E.
    (来学网)1.0mm