Good welding characteristics, stable arc, small splash, no bite edge, neat welding seam. ZX5-400, ZX5-500, ZX5-630 Silicon controlled rectifier Arc welding machineCharacteristics & Applications: 1,.Best welding machine which can replace AX series DC Rotative Machine.2.Remote control welding current, and remote control arc current. Easy arcing.3. Good welding characteristics, stable arc, small ...