Mild Steel Concealed hinge with a Nylon Pin
https://www.allbro.com.au/itemdetails/hardware/hinges/concealed-hinges/concealed-hinges-(15)/mild-steel-concealed-hinge-with-a-nylon-pin?code=al250---6&type=2&access=2&id=1fbb198b-4f3b-4b6b-9ef1-2c6710d71770
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