Cu φ 0.15 / Ni-Cr φ 0.02 _33 Cu φ 0.15 / Ni-Cr φ 0.02 Weldable The surface of the Cu wire is very uneven, so it is necessary to select a location when applying precision welded electrodes. Spot Welder: HSW-03A Electrode: HSW-T1 HSW-FB2