Threaded steel bar is widely used in building, bridge, road and other civil engineering construction.Large to highway, railway, bridge, culvert, tunnel, flood control, dam and other public facilities, small to the building of the foundation, beams, columns, walls, plates, steel thread are indispensable structural materials.With the deepening of China's urbanization, the booming development of infrastructure construction and real estate has a strong demand for threaded steel bars.