... bearing.MaterialGCr15SiMn, GCr15, G20Cr2Ni4APrecision typeP0, P2, P4, P5, P6,Seal typeOpen and Seal,Z,RZ,RS,2RS,2RZ,NCertificateISO9001:2000 StandardService OEM ... ServiceOur company supply bearing for many years, having professional technical directors and ... time, help you save time! SKF FAG NSK tower crane slewing ring rolamento