... High Ni Cast Iron... 4.Specification: ---Cross-Section:Round,Rectangle,Elliptic,Hexagonal ---OD:60-320mm,Thickness:7- ... ,sealing ring, sliding sleeve Industrial machineries axis sleeve, gear, kawa, wear-resistant sleeve, grinding sleeve Oil drillingdrillable ... ring, steering pump stator, gear Tractorshippingdry cylinder liner, piston ring, steering pump stator, gear Mine mechinanismwear resist sleeve, ...