Improvingthequalityofringcastingsfromnitrogen-containingcorrosion-resistantsteels;Influenceofabrasiveflowmachiningonreducingfuelconsumption,loweringemissionsandincreasingpower;ProductionofShipPropellerSteelBladesinSandMoldswithElectroslagReplenishment;Prototypingprocessproducessandmolds,coresforcastingsproduction。