barrel copper

barrel copper

[′bar·əl ‚käp·ər]
(mining engineering)
Copper in lumps small enough to be picked out of the mass of rock and put in the furnace without dressing.
References in periodicals archive ?
Tenders are invited for Supply of raychem make jointing kit suitable for ht & lt cables with long barrel copper ferrules/long barrel copper lugs as per following sizes.
Splice Standard Barrel Copper Compression Connector For