This unit process represents the production/service of 1P of resistance welding equipment ,in Japan created from statistical information and other sources.
This product includes Spot Welding Machine, Seam Welder, Upset Butt Welders, High-Frequency Resistance Induction Welding Machines, Etc., Press Type Spot Welder, Portable Spot Welding Machine, Multi-Spot Welding Machine, Nous Resistance Welding Machine, Low-Frequency Resistance Welding Machine, Stationary Type Spot Welder . 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>.