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Valves, pump, steel castings, iron castings, fasteners manufacturing, energy technology, heat exchange device R & D and technology transfer, industrial automatic control system device, metal pressure vessel, heat exchange device production, mechanical and electrical equipment installation engineering construction, self-operated And the import and export business of all kinds of goods and technology (except for goods and techniques for goods and techniques for import and export), metal materials, machinery and electrical equipment wholesale and retail. (Except for special provisions of these projects) (except for approval by law, business activities can be carried out after approval by relevant departments) [Detailed introduction]
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