corrosion-proof
71Parkérisé — Parkérisation La parkérisation , inventée par Claire Parker, est une technique de phosphatation au manganèse dite « profonde ». Elle permet une protection chimique d un métal afin d éviter son oxydation (corrosion). Le fer, par exemple …
72Phosphatation — La phosphatation est une réaction chimique opérée au moyen d un agent phosphoré. En sidérurgie, cette opération désigne plus particulièrement le traitement de l acier par l acide phosphorique. Historique Le décapage d une surface d acier à l aide …
73Burr (edge) — Metal burr extending beyond the edge of the cut piece, view on the cut face (top) and from the bottom (bottom) A burr is a raised edge or small pieces of material remaining attached to a workpiece after a modification process.[1] It is usually an …
74Nuclear fission product — Nuclear fission products are the atomic fragments left after a large atomic nucleus fissions. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons and a large release of energy… …
75Steam locomotive — A steam locomotive is a locomotive powered by steam. The term usually refers to its use on railways, but can also refer to a road locomotive such as a traction engine or steamroller.Steam locomotives dominated rail traction from the mid 19th… …
76Walther P99 — Infobox Weapon name=Walther P99 caption=Walther P99 Military, 9 mm version with green polymer frame origin=flag|Germany type=Semi automatic pistol is ranged=yes service= used by=See Users designer=Horst Wesp design date=1993–1996… …
77Nuclear program of Iran — See also: Iran and weapons of mass destruction Nuclear program of Iran …
78Household seismic safety — Contributions of photographs related to details of preparation are needed. Household seismic safety is an issue for areas of the world with a high risk of seismic activity, and is concerned with the following: *Appropriate securing of household… …
79Disney pin trading — is the buying and trading of collectible pins and related items featuring Disney characters, attractions, icons, events and other elements. The practice is a hobby officially supported and promoted by Disney.[1] Many thousands of unique pins have …
80List of British ordnance terms — This article explains terms used to describe the British Armed Forces ordnance (i.e.: weapons and ammunition) used in World War I and World War II. Note that the terms may have slightly different meanings in the military of other countries.BDBD… …
