The registration address of hebei long crown gate ltd. Is located on the edge of the village side of the town of poeyosu, yuzhou city, hebei province, with the registration authority being the riverside market supervision authority, represented by the legal person wang chong tao, and covers the sale and installation of metal doors and windows, wooden doors and windows, metal structure processing (except for products of the state industrial policy restricted or obsolete category); the sale of mechanical and electrical equipment, fire protection equipment, and hardware products. (projects subject to legal approval may not operate without the approval of the relevant department)