... good effect and lowest price.Feature:1.The series gantry SAW machine for large diameter submerged arc welding of sheet bar, ... accuracy, small size, able to weld dynamic tracking, and two-way reciprocating welding, weld quality assurance, improve work efficency.3 ... and hanging nose and outstanding performance welding, arc stability, weld quality, beautiful molding.6.Single or double wire-arc welding ...