★特点:电弧集中,电流稳定,不偏火,损耗小; ★规格:1.0*150 mm 1.6*150 mm 2.0*150mm 2.4*150mm 2.4*175mm 3.2*150mm 3.2*175mm 4.0*100mm 4.8*100mm 6.0*100mm 6.4*100mm 8.0*100mm