... piston ring, sel ring ,O-ring, and some kinds of oil separator and turbocharger and so on. Also supply other types ... : crankshaft, engine frame, engine bed, cylinder liner, o ring for cylinder liner, cylinder head packing, cylinder cover, indicator valve, safety ... guide, exhaust valve casing, exhaust valve roller guide, fuel pump complete, fuel pump roller guide, plunger w/barrel, fuel valve, nozzle, ...