... groove:N,NR,ZN 3.OEM is accepted 4.ISO9001:2000 1. ZWZ 6312 bearing 2. Product nameZWZ 6312 BEARING/6312 ... steel, PTFE, nylon PrecisionP0-P6clearance codesC2, C3, C4, C5QualityISO9001:2000 StandardID 60mmOD 130mmThickness 31mmSeal typeOpen and Seal,Z,RZ,RS ... to our costomers' requirementPortShang hai, Qing daoPayment termsA:100% LC at sightB:30% TT in advance.70% against B/LContact informationFax ...