... -0.15, Mn1.40-1.85, si0.80-1.15, p acuities were 0.025, s acuities were 0.035, cu ... portable inverter arc welding machine, dc inverter arc welding machine, dc argon arc welding machine, dc inverter and argon arc combination machine, mig gas shielded welding, ac arc welder ... -0.15, Mn1.40-1.85, si0.80-1.15, p acuities were 0.025, s acuities were 0.035, cu ...