Manufacturers and exporters of all types of scientific & laboratory instrument, Laboratory Glassware & Plastic-ware & Porcelain-ware, Medical & Surgical Equipment, Biological Models, Anatomical Models & Charts. Dealers enquires are solicited for the company
 

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BALL AND RING APPARATUS
 
BALL AND RING APPARATUS (1321)
A brass ball 25mm dia with a metal chain attached to wooden handle which holds a metal ring on a rod. Cool Ball passes through the ring but hot will not pass through.

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