Cathodes are produced by electrorefining and
submitted form of packed by steel ban, which included twentynine
cathodes at every package. Every group is checked by atomic absorbtion
spectrometer according to ASTM B115 to measure th impruties.
For every group is made test production and resaulte of cathode
is compared with resaulte of casted copper. They have cleaned
from sulphuric acid and protected from dirt and dust.
*** we dont have copper billet sale. ***