A.10°~15° B.5°~10° C.2°~5° D.1°~1.5°
A.浮动式模柄 B.压入式模柄 C.旋入式模柄 D.凸缘式模柄
A.1~2 B.1/2~1 C.1/6~1/3 D.1/8~1/6
A.230~240 B.250~260 C.260~280 D.270~290