Pisak Lertvijitpun Department of Welding Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
Narongdet Pattanaphiboon Department of Welding Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
Sittipong Sang-in Department of Welding Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
Phisittawin Reanpradub Department of Welding Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
