Specifications: The main products is the deep groove ball bearing, including 6000 series,6200 series,6300 series and so on. The quality can be ABEC-1, ABEC-3, ABEC-5 and EMQ grade. My main bearings as follows: (1).60 series:604---6012.604,605,606,607,608,609,6000-6010 (2).62 series:623---6212.623,624,625,626,627,628,629,6200-6210 (3).63 series:634---6312.634,635,636,637,638,639,6300-6310 (4).68 series:684---6812.684,685,686,687,688,689,6800-6810 (5).69 series:694---6912.694,695,696,697,698,699,6900-6910 (6). R series: R2---R18. (7).1600 series:1601---1635. (8) UC, UCP series