Double-action Transmission Structure,Microcomputer Control,The Adjustableness of Electrode,High Efficiency, Water Cooled, SCR DNK double-action series of AC. spot welding machineCharacteristics:1. Integrating KD-3B microcomputer controller,casing with simple.user-friendly interface and easy-operation pedal switch2. Adopting direct pressurization organism which has high stability and fast speed3. ...