... . 1 Copper Wire grade 1: including * * * dew, No coating, No alloy of pure Copper Wire, the surface without oxidation, do not ... . Level 2: including clean, no luster, no coating, wuxi, no alloy of pure copper wire and copper cable, do not contain ... .20, 0.25, 0.30mm, used for wire cutting machines high quality competitive price.Scrap Aluminum Purity:99%, 97%, 95%-96%..Technical ...