What is getting the iron welding in the process of production?
Common seating iron welding selecting process: lap, resistance welding series of projection welding can be considered.
Docking and seal, can consider resistance welding seam welding machine series.
These are only relative economic way of welding.
The highest strength of welding, laser ﹢ compound welding arc.
Is almost seamless welding, welding high strength.
As some ashkenazi car roof welding technology.
But the high cost of welding way.