سه‌نظام
type: Concept
broader: ابزار
preferred label: chuck @en
related: ابزار گیرش

ابزار گیرش
type: Concept
preferred label: clamping device @en
related: سه‌نظام

ابزار
type: Concept
narrower: سه‌نظام
preferred label: tools @en