metal
preferred label: فلز @fa
type: Concept
related: structural metal

structural metal
related: metal
broader: building materials
broader: materials
preferred label: فلز سازه‌ای @fa
type: Concept

building materials
preferred label: مصالح ساختمانی @fa
type: Concept
narrower: structural metal

materials
preferred label: مواد @fa
type: Concept
narrower: structural metal