This unit process represents the production/service of 1P of arc welding equipment ,in Japan created from statistical information and other sources.
This product includes Alternating Current/Direct Current Arc Welding Machine, Rotary Arc Welding Machine, Automatic Arc Welding Machine, Argon Arc Welding Machine, Stud Welding Machine, High Frequency Arc Welding Machine . The system boundary of this process is "(ordinary steel cold rolling sheets and cold rolled ordinary electrical steel hoops etc.) -> processing/assembly."
Ultrasonic welding machine is classified as <274911>.High frequency welders are classified as <274912>.Electron beam welding application machine is classified as <274919>.