#one copper is the next most profitable type of scrap copper to trade-in. For being categorised as #one, the copper need to be comprised of bus bars, clippings, commutator segments and scrap wire of no less than one/sixteenth of the inch in diameter. It also needs to be thoroughly clean https://copperwirescrap73841.ja-blog.com/32122078/scrap-wire-copper-price-per-kg-today-for-dummies