... acuities were 0.035, cu acuities 0.50. Wire surface smooth, the burr, scratch, corrosion and oxidation reflect, copper ... 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 ... acuities were 0.035, cu acuities 0.50. Wire surface smooth, the burr, scratch, corrosion and oxidation reflect, ...