1, mechanized and remote current control thrust adjustment function allows 0-100a of adjustment 2, mechanized and remote current control thrust adjustment function allows 0-100a of adjustment 3, idea for ship building, construction, rack and truck, 4, acidic and basic welding rods of various grade can be used for welding all of black metals 350pcs/20gp, 750pcs/40gp, 900pcs/40hq Net weight:18kg, gross weight:22kg 570*305*400