1)bearing type 606-6010,,625-6210,6300-6310 etc in ZZ 2RS 2)material in carbon steel/chrome steel 3)ISO9001:2008 Deep groove ball bearing type, bearing supply, brand bearings, high quality bearing SKF NTN, NSK bearing; brand such as I company cash supply brand bearings, the products are complete, quality insured is excellent!SKF NSK. BrandProduce deep groove ball bearing type, bearing supply, ...