... /MAG & Laser & Plasma avaiable 2. Automatic welding 3. Solar heater welder 1. MACHINE DESCRIPTIONThis machine is mainly designed for straight seam welding of ... , by using different welding source, like MIG, MAG, TIG, laser, plasma welding etc. 2. TECH PARAMETER LS-500LS-1000LS-1500LS-2000LS ... can be customized if not in the list. 3. PICTURES longitudinal seam welder