轴承型号:NU204---NU220 NU304---NU320 NU405---NU419
NU2204---NU2220 NU2304---NU2320
NJ204---NJ220 NJ304---NJ320 NU405---NU419
NJ2204---NJ2220 NJ2304---NJ2320
NUP204---NUP220 NUP304---NUP314 NUP405---NUP419
NUP2204---NUP2220 NUP2304---NUP2320
N204----N220 N304--N320 NF204---NF220 NF304---NF320
材质:轴承钢 |