SPC is a professional company who provides systematic solutions and services for turbo-machinery in the fields of metallurgical industry, petrol-chemical industry, air separation, environmental protection, national defense, etc. Traditional products include axial compressors, energy recovery turbo-expanders, centrifugal compressors, centrifugal blowers, large ventilators and steam turbines. Wherein, the axial compressor and the turbo-expander are a kind of environmental protection products.