A.0.6 B.0.7 C.0.8 D.0.9
A.0.05~0.10 B.0.1~0.2 C.0.2~0.25 D.0.2~0.3
A.多层垫片 B.游隙 C.丝杆 D.螺钉
A.1 B.2 C.3 D.4