... bearings.We also have our own brand-BTR,our factory is located in Wafangdian,which is the hometown of ... groove ball bearing,angular contact ball bearing,thrust ball bearing,cylindrical roller bearing,taper roller bearing,spherical roller bearing and thrust roller bearing Our main ... steel,Carbon steel, Material Of The CageBrass,polyamide,bearing steel and so on Packagewooden box,carton,according to ...