... cycle&efficiency,fan-cooled,suit 4mm rod DC Inverter welding machine,mma welder,inverter welder(ARC160P) has the following characteristics:1 ... . IGBT inverter technology: Adopt advanced inverter technology which is characterized by an ultrapowerful welder ... +user manual1set/plastic box, 2boxes/carton, size:55x32x40cm Portable DC mma inverter welder ZX7-160