gas nitriding
... gas mixture 气体混合物, 混合气体 gas nitriding 气体氮化 gas oil 气油, 轻油 ...
gas nitridation
... gas nitridation 气体氮化 thermal nitridation 热渗氮 nitridation schedule 氮化制度 ...
gaseous cyaniding
nitrocarburizing ; carbonitriding
nitempering