and a white heat at 2910 Fah ... By this mode of making the copper alloy, a very superior casting is obtained. In England where the manufacture of brass is carried on very extensively, the ...

Wieland, a supplier of copper and copper alloys, has hired Graycor and Helmkamp Construction as the design-build contractor ...

A White House official ... The copper probe will cover raw copper, refined copper, copper concentrates, copper alloys and scrap copper, as well as derivative products that use copper, since ...

A White House official said the investigation would include raw mined copper, refined copper, alloys, scrap and certain derivative products that are made with copper. Rebecca F. Elliott ...