312 33 72 135 ( )A.236B.228C.210D.192
312 33 72 135 ( )
A.236
B.228
C.210
D.192
相关考题:
轴承代号为3312B中其轴承内径为()。A.33mmB.12mmC.312mmD.60mm
312 33 72 135 ( )
A.236
B.228
C.210
D.192