轴承型号:6304-2RS
NU20/630ECMA
NCF29/630V
GEP630FS
OH39/630H
619/630N1MA
6304-2ZNR
C31/630KMB+OH31/63
NJ29/630ECMAS/HB1
6309NR
6307-2ZNR
6302/HR22Q2
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