6th April 1945, Page 33
6th April 1945
Page 33

Page 33, 6th April 1945
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Material Mastery By Temperature Control
The Urge to Substitution and the Use of Nominally Lower-alloyed Steels has - Prompted Full Advantage to be Taken of Control of Physical Properties by Specialized Heat-treatment......
Expediting The Refacing Of Engine Valves
r r HE use of portable, electric, hand tools was gradfally 1 increasing in popularity before the war, and there is no question that during the war enormous strides have been......