General projects: manufacturing of industrial automatic control system devices; manufacturing of intelligent instruments and meters; manufacturing of instruments and meters; manufacturing of power distribution switch control equipment; manufacturing of special equipment for environmental protection; manufacturing of mechanical and electrical equipment; manufacturing of integrated circuits; manufacturing of integrated circuit chips and products; manufacturing of electronic components; manufacturing of special materials for electronics; precious metal smelting; manufacturing of non-ferrous metal alloys; manufacturing of metal materials; manufacturing of forgings and powder metallurgy products; metal surface treatment and heat treatment; manufacturing of metal structures; manufacturing of special ceramic products; manufacturing of clocks and timing instruments; urban rail transit equipment