steel making
type: Concept
broader: iron & steel metallurgy
preferred label: فولادسازی @fa

iron & steel metallurgy
type: Concept
broader: metallurgical technology
narrower: steel making
preferred label: متالوژی آهن و فولاد @fa

metallurgical technology
type: Concept
narrower: iron & steel metallurgy
preferred label: فناوری متالورژی @fa