A.調(diào)心球軸承 B.調(diào)心滾子軸承 C.圓柱滾子軸承 D.深溝球軸承
A.ZCuSn10P1 B.ZSnSb8Cu4 C.HT200 D.GCr15
A.深溝球軸承 B.角接觸球軸承 C.圓柱滾子軸承 D.圓錐滾子軸承