Mar 13, 2012 Â·. The term age hardening is a general term referring to most (if not all) time and/or thermal treatments to increase the strength (and sometimes the ductility) of a heat-treated metal. It can result the release of built-in stresses or permit phases locked in (due to quenching) to transform .
NRA stands for National Rifle Association. The group was founded in 1871 as a recreational group designed to promote and encourage rifle shooting on a scientific basis. The NRA's path into political lobbying began in 1934 when it began mailing members with information about upcoming firearms bills.
Return on Net Assets (RONA) The return on net assets (RONA) is a comparison of net income with the net assets. This is a metric of financial performance of a company that takes into account earnings of a company with regard to fixed assets and net working capital.