It is the ideal filler metal for aluminum base material.Automotive repair, robotic or hard automation and structural steel. Supports short-circuiting, globular, axial spray, and pulsed spray transfer in all positions. Well suited for applications where accurate and consistent wire feed are necessary.It is: Low Spatter, High Speed, Porosity Free, Good bead appearance, Easy to weld.Shield Gas is: 80%t Ar+20%t CO2.ER5356 for better welding strength.ER4043 for better material flowability.We offer: 0.8/1.0/1.2mm (0.03/0.040/0.047), 0.5kg(1.1LB), for option.Please do not worry about the spool, it is following the international standard. Package: 1pcs.Please choose the type you need.