Newer Alloys Achieve Prominence

Reference is Made to a Free-cutting 18/8 Stainless Steel Containing Silver, and to the use of Nickelbearing Nitriding Steels as Straightforward Precipitation Hardening Material......

Selecting Oil For Producer-gas Efficiency

Increase in Oil Viscosity means Greater Care Needed. in the Choke of Suitable Lubricants IT is generally, conceded that the rate lof engine wear, when producer gas is used, is......