... power 3. weld electrical cable, wire, brass SZ-3T 0.80mm-4.0mm copper wire cold pressure welder / alumimum wire, brass wire, flat wire welding machine1.welding copper wire, aluminum wire with ... to weld 0.8mm, 1.2mm, 2.0mm, 3.0mm copper wire, you can choose our model SZ-3T, or SZ-3TR. 0.80mm-4.0mm copper wire cold pressure ...