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Apparatus and installations for power generation, namely, machines for treatment of materials, namely, catalyst treatment machines; apparatus and installations for processing of oil and chemical products, namely, machines for treatment of materials, namely, catalyst treatment machines; oil refining machines; oil refining machines for loading and unloading catalysts; oil refining machines for loading and unloading materials into inert reactors

Construction, construction planning, servicing, maintenance and repair of industrial plants in the nature of oil-refining reactors and oil refineries; building construction, servicing and maintenance of petroleum refineries and structures for the processing of petroleum and chemical products; servicing and maintenance of machines for refining petroleum, processing petroleum and chemical products, loading and removing catalyst from reactors and loading inert materials into reactors