The registration office is the market supervision authority of the wuqing district of tianjin city, represented by a legal person, li jin-sheng, and covers general projects: architectural decorations, parts of hydro-heating pipes and other construction metal products; steel pressure prolonged processing; metal structure sales; metal parts sales; and goods import and export. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)