... grade 1: including No nudity , No coating, No alloy of pure Copper Wire, the surface without oxidation, do not contain the hair ... clean, no luster, no coating, wuxi, no alloy of pure copper wire and copper cable, do not contain the wool yarn and burnt ... fragile copper wire. BarleyBerryNo. 2 Copper Wire No. 2 Copper Wire without alloy of Copper scrap line, contain sundries, Copper content is 96 ...