... the central of welding machine.2.2Cross Wire Feeding System:Automatic cross wire loading carriage with single wire hopper for sorting , ... System:By means of servo motor control,cross wires fed up and welded line after line until one cycle finished.Then,servo ... Wires re-supply,non-wires,fault of line wires discharging,fault of cross wires ejecting,line wire forwarding,short of welding power,overloaded ...