A NEW STEEL
A FRENCH INVENTION
I' (United Press Association. —By Electric . Telegrapu.—Copyright.) (Received this day at 9.25. a.m.) PARTS, May 2. Two French chemists M. Aubert and AT. Duval have invented a new steel, the main feature of which is that it (insists of treating steel allows with nitrogen. It is also subjected to ammoniac gas. The product cuts glass and quarts like paper. The process is effective with steel, only the surface hardness of the new steel which is already being manufactured is stated to i bo the highest known. Exhaustive tests with motor and f aero engine cylinders are stated to produce remarkable results.
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Hokitika Guardian, 3 May 1929, Page 5
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107A NEW STEEL Hokitika Guardian, 3 May 1929, Page 5
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