In dimension φ60f7 in a detail drawing, φ60 is , f is , 7 is .
A.
The nominal size of a revolved surface, the fundamental deviation symbol of an external surface, the IT grade.
B.
The measured size of a revolved surface, the fundamental deviation symbol of an internal surface, the IT grade.
C.
The nominal size of a revolved surface, the fundamental deviation symbol of an internal surface, the IT grade.
D.
The nominal size of a revolved surface, the fundamental deviation symbol of an internal surface, the tolerance symbol.