... Iron...III. Specification: ---Cross-Section:Round,Rectangle,Elliptic,Hexagonal ---OD:60-320mm,Thickness:8-35mmOur profiles could be ... used in mechanical industries,such as railway vehicle, oil machine,engineering machine,auto parts,compressor, hydraulic and ... sleeve, gear, kawa, wear-resistant sleeve, grinding sleeve Oil drillingdrillable packers/drillable bridge plug, suction vitta Railway vehicle ...