双转环钩 double swivel hook

吊钩转环 cargo hook swivel

具有旋转环的货钩 seattle cargo hook

船货吊钩转环 Cargo hook swivels

环眼旋转钩 Eye Swivel Hook

转环式车钩 swivel coupling

钓钩转环和铅坠套件 hook swivel and sink kit