Zinc, Its Mining, Milling And Smelting
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Locates zinc-ore areas in the United States, describes the process of mining, transporting and smelting ore to produce zinc oxide and metallic zinc, and illustrates principal industrial uses of zinc.
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Sources
- 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, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
Original permalink · Record added 2023-02-27 07:24:47