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 co...