Details TIG, and features why and when AC and DC current is needed.
Film Library/Greater Los Angeles Safety Council, 600 Wilshire Blvd., No. 1263, Los Angeles, CA 90017, Phone: (213)385-6461, Toll-free: 800-421-9585, Fax: (213)385-8405, URL: http://www.lasafety.org
Available on VHS
Running time 14 minutes.
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