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Aviation History
1937
1937 - 0724.PDF
42 FLIGHT. ADVERTISEMENTS. MARCH 18, 1937. Mak ing sure with DIAMET Inspected'ST EEL THE UNITED COMPANIES LTD Specified for the highly stressed parts in many aero engines "DIAMET Inspected" Steels are made in the high- frequency electric furnace; a refining process which is only possible in this type of plant gives them inherent "cleanness" and freedom from non-metallic inclusions. The especially severe "DIAMET" Code of Inspection, applied at every stage in manufacture, and vouched for by the certificate which accompanies every batch, ensures consistency and regularity. Finally every bar or billet is individually marked with the "DIAMET" Inspection mark. In this fashion the user of "DIAMET Inspected" Steels makes sure of the reliability of the highly stressed parts for which these steels are increasingly specified. Write for the "DIAMET" Book, SF.I77, to The Publicity Department, The United Steel Companies Limited, 17, Westboume Road, Sheffield, 10. SAMUEL FOX & CO. LIMITED Associated with The United Steel Companies Limited STOCKSBRIDGE NR. SHEFFIELD ® DT.12
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