... P Cast Iron--High Ni Cast Iron...III. Specification: ---Cross-Section:Round,Rectangle,Elliptic,Hexagonal ---OD:60-320mm,Thickness:8 ... Metallurgical equipmentcasting lift tube ,suction tube, thermocouple protect tube Air-condition compression machinerolling piston ring Automotivedry cylinder liner, piston ring ... pump stator, gear Mine mechinanismwear resist sleeve, engine cylinder Air Compressor Liner