KB40 KB40-PP KB40-PP-AS舍弗勒INA机加工直线球轴承 ¥400.00 KB50 KB50-PP KB50-PP-AS舍弗勒INA机加工直线球轴承 ¥600.00 KBS12 KBS12-PP KBS12-PP-AS德国INA舍弗勒直线球轴承 ¥240.00 KBS16 KBS16-PP KBS16-PP-AS舍弗勒INA机加工直线球轴承 ¥420.00 KBS20 KBS20-PP KBS20-PP-AS舍弗勒INA机加工直线球轴承 ¥320.00 KBS25 KBS25-PP KBS25-PP-AS舍弗勒INA机加工直线球轴承 ¥410.00