Metalcaster's reference and guide

Metalcaster's reference and guide

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Moha#39;s Hardness Scale A universally adopted and recognized scale for hardness of minerals and abrasives, Moha#39;s Hardness Scale, has made it possible to use ... A hard steel ball of standard dimensions (ordinarily 10 mm diameter) (.304 in.)anbsp;...

Title:Metalcaster's reference and guide
Author:Ezra L. Kotzin
Publisher: - 1972


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