Copper Sheet Strip 0.02/0.03/0.04/0.05mm to 1mm Thickness Flexible Pure Copper Fire refining can obtain 99-99.9% pure copper, and electrolysis can make the copper purity reach 99.95-99.99%. Copper is relatively pure copper. ✅ The use of copper tape：High purity, fine tissue, low oxygen content. byJuly 3, 2026
