... :0.3~1.5mm TIG welding Min.dia.:250mm We supply seam welder,flanging machine,automatic folding machine, automatic rolling machine,etc..We are ... make all kinds of complete set automatic welding machines,includ TIG,MAG,MIG machine and various cutting equipment.The products are widely used ... m/min7. Moving precision:±0.1mm/m8. Cylinder diameter:≥ID180mm Automatic longitudinal seam welding machine