11. The skin was riveted duralumin , like the wings. 12. It was an all-metal aircraft constructed and skinned largely from duralumin . 13. The engine was mounted on welded steel bearers attached to a duralumin fireproof bulkhead. 14. The longitudinal duralumin girders connected all the rings together and formed " panels ". 15. The Sumitomo plant produced duralumin , the hard aluminium alloy used in airframe construction. 16. An internal duralumin walled tunnel gave access between the rear cabin and the guns. 17. The structure was built from a new alloy of aluminum and copper known as duralumin . 18. In the Mistborn series by Brandon Sanderson, duralumin is one of the allomantic metals. 19. The rigidly braced wings covered with fabric were constructed from light duralumin alloy and steel. 20. Plymax consisted of a thin sheet of duralumin bonded to a thicker sheet of plywood.
