The registration address of smac is located in room 421 of the penang road and zhong doong city north district, in hebei province; the registering authority is the market supervision authority for the peaches city, with legal representatives representing li hong-hung cai; general projects: technical services, technology development, technical advice, technical exchange, technology transfer, technical promotion; specialized equipment for the protection of the environment; sale of specialized equipment for the protection of the environment; repair of specialized equipment; sale of refrigeration, air-conditioning equipment; electrical, cable operation; sale of structural components; sale of signs for transport and public management; sale of plastic products; sale of metal materials; sale of wind machines and fans; management of construction water and water-proofing products; construction services; sale of metal products; sale of metal products; supply and repair of equipment for the construction and repair of electrical and technological equipment; construction of equipment for the construction and repair of electrical products; construction of equipment for the construction and repair of electrical and electrical materials; installation of equipment for the construction of electrical and electrical equipment; installation of electrical equipment for the construction of electrical products; construction and construction of equipment for the construction of electrical and electrical equipment; (in addition to projects subject to authorization under the law, activities are carried out independently of the law 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)