缓冲型圆锥形套筒冠内、外冠之间的间隙,一般(来学网)面间为
  • A.
    (来学网)0.3mm
  • B.
    (来学网)0.2mm
  • C.
    (来学网)0.1mm
  • D.
    (来学网)0.4mm
  • E.
    (来学网)0.5mm