ضدآب کردن
type: Concept
preferred label: waterproofing @en
related: اتصالات محکم

اتصالات محکم
type: Concept
broader: اتصالات
preferred label: tightness joints @en
related: ضدآب کردن

اتصالات
type: Concept
narrower: اتصالات محکم
preferred label: joints @en