... strength:30-40kg/mm2 3)Cu:99.995% Oxygen-free copper wirespecification:1)wire diameter:0.10-0.30mm 2)Tensile strength:30 ... :φ3.4mm,φ3.0mm,φ2.6mm6)Application:The round copper wire are mainly used in cable and electrical appliances. If you ... are interested in our products, please be free to tell us, we assure you of our best services. Oxygen-free copper wire