hea elektrijuhtivusega tehniline vask, mille hapnikusisaldus on minimaalne (ca 0,03%)
metal with high purity, having an electrical conductivity no much below that of the international standard, which is for a wire 10 m in length and weight 10 g
Hea teada
Copper that in the annealed condition has a minimum electrical conductivity of 100% IACS.
