... 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 ... not be large difference.Main parameters1.Welding Range(wire) Copper: 0.80mm-4.0mm Aluminum: 0.80mm-5.5mm2.Machine Structure ... , 3.0mm copper wire, you can choose our model SZ-3T, or SZ-3TR. 0.80mm-4.0mm copper wire cold pressure welder ...