China Inch Thrust Ball Bearing with Cover B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, B16, B17, B18, B19, B20 Xrb-Zwa Bearing Industry Co., Limited Base Info Description Pre：Mainframe and Large Motor, Generator, Internal Combustion Engine, Gas Turbine, Machine Spindle, Reduction Gear, Loading and Unloading Machinery, Bearing Nnu4020 Next：3mm Round Drilled Through Bead for Jewelry Ring
