building materials
preferred label: مصالح ساختمانی @fa
type: Concept
narrower: concrete block

concrete product
preferred label: فراورده بتنی @fa
type: Concept
narrower: concrete block

concrete construction
preferred label: اجرای بتنی @fa
type: Concept
related: concrete block

concrete block
related: concrete construction
broader: concrete product
broader: building materials
preferred label: بلوک بتنی @fa
type: Concept