Jinfa Bearing Co., ltd ---a professional manufacture of low noise deep groove ball bearing and tapered roller bearing for ten years. And got ISO9001 in 2002 and ISO/TS16949 in 2008.deep groove ball bearings:1) Bearing type: 6002~6022, 6201~6219, 6301~6319, 6403~64152) Model: Open, Z, ZZ, RZ, 2RZ,...