... current stable 1.Digital adjustable,electricity time,welding current,etc,2.Touching panel,duralbe and reliable,out put current stable.3.Microprocessor ... spot gun,pneumatic spot gun.5.Continuous single spot welding and pulse single spot welding to high spot metal sheet 6.Controlled by ... visit our website: www.everet.net to see more details. Welding machine, Spot Welding Machine EE-SP12000