WOOD & METAL CYLINDER PSAW |
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| WOOD & METAL CYLINDER PSAW
(1210 H ) |
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Comprising of a cylinder 200x30mm dia. one half of which is wood, the other metal. If paper is wrapped tightly round the cylinder and the rod is held above the flame, the portion in contact with the wood will be quickly scorched while the portion in contact with the metal will remain unchanged.
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