flexible foam
type: Concept
broader: foam
preferred label: کف انعطاف‌پذیر @fa

foam
type: Concept
narrower: flexible foam
preferred label: کف @fa
related: surface chemistry
related: physical chemistry

surface chemistry
type: Concept
preferred label: شیمی سطح @fa
related: foam

physical chemistry
type: Concept
preferred label: شیمی فیزیک @fa
related: foam