Cu%: 99.9%Element...0.005... (%)Copper..99.9... % (Min.)                                                   Lead...0.005.... % (Max.)Bismuth...0.5.. % (Max.)Total impurities...0.3.. % (Max.)

No. 1 cooper Copper Wire level 1: including without bare, No coating, without the pure Copper alloys, surface non oxidation, excluding the hair silk, the Copper Wire 1.6 mm diameter should not be less than. Level 2: including clean, without luster, no coating, wuxi, without the pure copper alloy wire and cable, excluding wool yarn and burnt the fragile copper wire.