SEMI-AUTOMATIC AND HAND MOLDING OF INTRICATE PARTS
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✎ Suggest a correctionShows how to mold a part with undercuts, mold a part with complicated shape, and assemble and disassemble a hand mold. From the PLASTICS series, No. 6
Sources
- usgov-av-1974 — title, year, creator, length, color, sound, description
Record added 2026-07-01 03:46:06 · Suggest a correction