| | | Welding electrode. Rods of solid tungsten from 1/16 to 1/8 inch diameter and 3-7 inches long are used as electrodes in certain kinds of arc welding.  Claudin Welding Supply kindly donated one when I went there looking for Hafnium.
 Source: Claudin Welding Supply
 Contributor: Claudin Welding Supply
 Acquired: 24 July, 2002
 Price: Donated
 Size: 7"
 Purity: >95%
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