To know how good valves can be, install valves that are known to be

Nov 5, 2010 - Advertisements that appeared within the print issues of Chem. Eng. News have been included in the C&EN Archives to provide a ...
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The Wm Powell CCompany

POWELL B R O N Z E , I R O N / STEEL A N D C O R R O S I O N - R E S I S T I N G VALVES VOLUME

31, N O .

19

» MAY

11,

1953

1955