General projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; lighting equipment manufacturing; semi-conductor lighting; semi-conductor lighting; light-voltage and meta-ware manufacturing; sale of light-voltage equipment and meta-ware; sale of light-voltage equipment and components; construction of metal tags for transport and public administration, subject to the approval of the competent authorities; production of electrical signal equipment, subject to the approval of the approval of the relevant authorities; construction of electrical signal equipment; construction of metal structures; production of radar and ancillary equipment; production of services (without labour dispatch); sale of light materials; sale of metal; sale of batteries and metal; sale of electrical equipment; monitoring of electrical equipment and construction services; construction of electrical engineering facilities; constructio...