یاتاقان
type: Concept
preferred label: bearings @en
related: روان‌ساز

روان‌ساز
type: Concept
broader: شکل مواد
preferred label: lubricants @en
related: گرافیت
related: یاتاقان
related: روغن
related: پیه
related: تالک

روغن
type: Concept
preferred label: oils @en
related: روان‌ساز

شکل مواد
type: Concept
narrower: روان‌ساز
preferred label: materials by form @en

پیه
type: Concept
preferred label: tallow @en
related: روان‌ساز

تالک
type: Concept
preferred label: talc @en
related: روان‌ساز

گرافیت
type: Concept
preferred label: graphite @en
related: روان‌ساز