http://1920-30.com/blog/mining-and-metallurgy-achievements-1929/ A Snapshot of Life in the 1920's Sat, 16 May 2009 17:13:15 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://1920-30.com/blog/mining-and-metallurgy-achievements-1929/comment-page-1/#comment-430 metallurgy » Blog Archive » PETER DUESBERG Fri, 18 May 2007 00:49:31 +0000 http://1920-30.com/blog/mining-and-metallurgy-achievements-1929/#comment-430 [...] The most important developments in ferrous metallurgy have been the Ashton process for producing wrought iron in large tonnages at low cost, the tremendous increase in the production of stainless steels and irons, the introduction of … …more [...] [...] The most important developments in ferrous metallurgy have been the Ashton process for producing wrought iron in large tonnages at low cost, the tremendous increase in the production of stainless steels and irons, the introduction of … …more [...]

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