... Seam width no more than 3mm 3,Welding speed no less than 1,Welding material SS cold-rolled sheet ,thickness ... no more than 3mm 3,Welding speed no less than 1000mm/min 4,Welding Arc Length no more than ... 0.01mm/1000mm(0.05mm SS sheet)6,Welding Length 1000mm-3500mm1,Welding material SS cold-rolled sheet ,thickness 0. ... 0.01mm/1000mm(0.05mm SS sheet)6,Welding Length 1000mm-3500mm Straight welding machine