High Precision NU221, NJ221, NUP221, N221 Ecml/C3 Bearing for Locomotive and Rolling Stock Xrb-Zwa Bearing Industry Co., Limited Base Info Description Pre：High Quality NU2320, NJ2320, NUP2320 Ecml/C3 Bearing for Machine Tool Spindle Next：China Nu321, Nj321, N321 Ecml/C3 Bearing for Large and Medium-Sized Electric Motor
