Rebar is medium and above building components must use steel, China has a certain amount of imports every year. The main producing countries and regions are Japan and Western Europe. The number of export rebar has increased, the main export manufacturers for Beijing, Tianjin, Shanghai, Wuhan, Sichuan, Liaoning and other provinces and cities of iron and steel enterprises. The main export areas are Hong Kong, Macao and Southeast Asia.

The transverse rib geometry of imported rebar steel is mainly common square thread or common oblique square thread. The transverse rib geometry of domestic rebar mainly has spiral shape, herringbone shape and crescent shape. In general, the ordering principle of rebar is based on mechanical process performance or mechanical strength index on the basis of meeting the requirements of grip performance required by engineering design.

China's steel consumption has obvious characteristics of a developing country. The construction and industrial steel consumption accounts for about 90% of the total steel consumption, and the proportion of construction steel is 50%. As China is in the historical stage of rapid urbanization development, there is a great demand for construction steel. As the main construction steel, rebar consumption has been occupying a large proportion of China's steel production.