Shandong vosk air conditioning equipment limited operates in the manufacture of refrigeration and air conditioning equipment; the sale of refrigeration and air conditioning equipment; the development of mechanical equipment; the manufacture of specialized equipment for environmental protection; the sale of specialized equipment for environmental protection; the import and export of technology; the sale of wind machines and fans; the manufacture of electrical motives; the import and export of goods; the sale of generators and generators; the sale of electronic products; the manufacture of general equipment; the integration of intelligent control systems; the sale of industrial automated control system devices; and the manufacture of industrial automated control system devices。