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✎ Suggest a correctionPresents a short history of industrial abrasives. Covers the manufacture of grinding wheel and drills from alumina, silicon carbide and diamond and their testing and uses.
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- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, length, format, sound, description
- 16mm Filmography (legacy record) — creator, catalog record
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