ring (structure)
type: Concept
alternative label: O-ring
broader: shape (structure)
preferred label: رینگ (ساختار) @fa
related: engine cylinder
related: mechanical product
related: piston
related: seal (stopper)

shape (structure)
type: Concept
narrower: ring (structure)
preferred label: شکل (سازه) @fa

seal (stopper)
type: Concept
preferred label: مهر (مسدودکننده) @fa
related: ring (structure)

engine cylinder
type: Concept
preferred label: سیلندر موتور @fa
related: ring (structure)

piston
type: Concept
preferred label: پیستون @fa
related: ring (structure)

mechanical product
type: Concept
preferred label: محصول مکانیکی @fa
related: ring (structure)