Manufacturing process
Integrated Steel Manufacture
Seamless pipes & tubes (Mannesmann process)
Seamless pipe pipes & tubes (hot extrusion ･ hot hollow forged)
Electric resistance-welded pipes & tubes
Hot electric resistance-welded pipes & tubes
Arc-welded pipes & tubes (SAWL pipe (by UOE process), SAWL pipe (by Bending roll process), SAWH pipe (by Spiral process))
