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3D3DCopper-clad welding carbons.
Common copper-clad graphic rods used in welding. The copper is more electrically conductive than graphite, preventing excess voltage drop if the electrode clamps are attached at the far end of the rods. As the rod is consume the copper is vaporized a bit back from the end.
Source: Farm & Fleet
Contributor: Theodore Gray
Acquired: 16 April, 2009
Text Updated: 17 April, 2009
Price: $5
Size: 0.25"
Purity: >95%