... pipeline of circular seam welding, design and manufacturing for all position automatic welding. 2,This welding machine is suitable ... Max Alignment(Offset): 70mm Remaining Time: 0-2S Welding wave shape: Triangular wave, Trapezoid wave, Rectangular wave,and beeline etc. ... loop control for the core hardware circuit, in the piping all position automatic welding process, the welding parameters can preset, ...