It mainly applies in petroleum, chemical industry, natural gas, air separation, chemical fertilizer, oil refining, metallurgy, mining, high-pressure gas injection, coal, hydrocarbons, combustible gas in power plant, instrument gas, etc. Reciprocating compressor has the advantages of small flow, large pressure ratio, applying to wide range of media and working conditions. It is durable with low maintenance cost. It is suitable for a variety of process flows with excellent performance.