Rebar is widely used in housing, Bridges, roads and other civil engineering construction, large to highways, railways, culverts, tunnels, flood control, DAMS and other public facilities, small to the foundation of housing construction, beams, columns, walls, plates, rebar is an indispensable structural material.

There are two commonly used classification methods for rebar: one is geometric shape classification, which is classified or divided according to the cross-section shape of the transverse ribs and the spacing of the ribs. The second is performance classification.