Carabiner - Wikipedia
2022-1-2u2002·u2002A carabiner or karabiner ( ˌ k ær ə ˈ b iː n ər /) is a specialized type of shackle, a metal loop with a spring-loaded gate used to quickly and reversibly connect components, most notably in safety-critical systems. The word is a shortened form of Karabinerhaken (or also short Karabiner), a German phrase for a 'spring hook' used by a carbine rifleman, or carabinier, to …
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