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Welded construction
this kind of optical glass prisms can reflect seven-color sunlight
offering enhanced features such as data logging
20W halogen or LED bulb
(KB 20) Cube mixer made of acrylicglass
Ring And Ball Apparatus glass rod used in laboratory Welded constructionRing And Ball Apparatus A useful apparatus for demonstrating thermal expansion. Includes a brass ball and a brass ring each mounted on a handle. The ball fits easily through the ring at room temperature. When the ball is heated over a flame, it expands and no longer fits in the ring.
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