4
Fuel gas; liquefied natural gas
7
Compressors for gas compression; valves; regulators; expansion turbines; fluid separators; machines and mechanical equipment dedicated to gas, petroleum, chemical or petrochemical industry installations; chemical product production apparatus, devices and installations
11
Installations and apparatus (and components thereof) for fluid liquefaction, separation and evaporation; gas condensers; gas separation equipment; gas purification installations and equipment; heat exchangers for natural gas or hydrocarbon gas; apparatus, installations and equipment for the treatment and liquefaction of hydrocarbon gas and natural gas; gas production apparatus, devices and installations
40
Treatment of products, namely, liquefaction of gas and particularly of natural gas; gas production services
42
Engineering work, technical consultations, plan preparation, technical project studies, industrial research and development services, studies and work provided by engineers, namely, appraisals, evaluations, estimates, research, preparation of reports in the fields production and liquefaction of gas, particularly natural gas
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