illegal. . According to the inquiry knowledge, non-standard rose refers to the threaded steel bar outside the standard specification range. In China, the production and sale of threaded steel bars need to comply with relevant national laws, regulations and standards, otherwise it is illegal.
rebar is a common name for hot-rolled ribbed bar. The grade of common hot-rolled steel bar consists of HRB and the minimum yield point of the grade. H, R and B are the first letters of the words Hotrolled, Ribbed and Bars respectively.