Pipe and round rods

Flats and square roof

Think sheet

Heavy sheet

One member stationary and another rotating type

Both members rotates

Both members are heated

One member is heated and another rotating

Seam welding

Friction welding

Flash butt welding

Spot welding

Fusion stage

Non fusion stage

Plastic stage

Only heating stage

Groove tungsten arc welding

Grip tungsten arc welding

Gas tungsten arc welding

Galvanised tungsten arc welding