1214SC3 日本NTN主轴轴承 30220U,1214SC3重量,1214SC3尺寸,1214SC3参数,4T-16150图纸,4T-16150 采购价格4T-16150,4T-16150货期 NKXR15T2Z货期价格,NKXR15T2Z图纸参数,NKXR15T2Z采购交期,,