A.0.25~0.3 B.0.15~0.2 C.0.05~0.1 D.0.02~0.03公厘為適當
A.真直 B.表面光 C.同心 D.真平度
A.0.50~0.60 B.0.35~0.45 C.0.20~0.30 D.0.05~0.15公厘為適當