The registration address of hebei's shinsein sanitation equipment manufacturing co. Ltd. Is located in the south-west corner of the village of zhao zhao zhang village, chen zhang zhengzhou, hebei province (opposite the zhong hin mechanical fittings plant), with the registration authority providing the county market supervision authority and the legal entity representing zhang zhing, which operates on general items: special equipment for environmental protection; sale of specialized equipment for environmental protection; sale of mechanical and electrical equipment; sale of construction materials; retail sale of hardware products; sale of machinery for construction works; construction of garden greening works; construction of furniture; sale of metal structures; sale of metal tools; retailing of sports supplies and equipment. (a) licensing projects (in addition to projects subject to legal authorization, operating on an autonomous basis under a business licence); (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)