Pure Copper Wire 0.7mm 0.8mm 0.9mm 1mm Round Solid Bare Wire Multi-Size Craft Semiconductor field: connecting wires, interconnection materials, conductive layers, heat dissipation materials, etc. Pure Copper Round Solid Bare Wire 0.7mm 0.8mm 0.9mm 1mm Multi-Size Craft DIY. Material: Copper. byJuly 4, 2026