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#torsion spring #door hinge #hinge spring #rotation mechanism #door hardware

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#hinge #door hinge #literal hinge #pivot #swing #open close

🚪🔄🔩

#hinge #door hinge #cerniera #cardine #pivot #window hinge #gate hinge #ferramenta

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#door hinge #gate hinge #pivot #joint #mechanical fastener #door hardware