Arc Welding, Battery Chargers & Body Repair | GYS gys, welding, welder, arc welder, stick welder, mig welder, tig welder, mig, tig, mig welding, welding wire, safety gear, stick electrode, mig wire, tig wire, aluminum welding, welding helmet, gloves, glasses, dent puller, spotter, charger, booster, jumper cables, starter GYS is a French family-owned manufacturing group that engineers, designs and sells arc welding, collision repair and automotive battery service equipment.