"WL” automatic rebar tying machine is a handheld battery rebar tying tool. It is widely used in concrete constructions. It can complete all processes of rebar tying automatically, as it is equipped with micro control chip. It shares large national and international markets, because of its high tying speed, simple operation, high safety, light weight and good performance. Rebar tier is labor saving, as it is five to six times more efficient than manual labor. It remarkably reduces the labor intensity and improves tying efficiency.