| Springs, bearings, electroplating, photo etching | ||
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| Electroplating (Workshop Practice)
by Jack Poyner £4.20 | Photo Etching (Workshop Practice)
by Brian King £4.05 | Spring Design and Manufacture (Workshop Pra...
by Tubal Cain £4.53 |
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| Bearings (Workshop Practice)
by Alex Weiss £4.06 |
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Misc
