1.used in cold welding of various non-ferrous wires. 2.welding with no heat, no power 3. weld electrical cable ... , wire, brass SZ-3T 0.80mm-4.0mm copper wire cold pressure welder / alumimum wire, brass wire, flat ... die. For example, if you need weld 1.0mm, 1.15mm, 1.30mm, 1.5mm copper wire, we should make four ... if you want to weld 0.8mm, 1.2mm, 2.0mm, 3.0mm copper wire, you can choose our model ...