GS0401: CUSTOM FABRICATION OF PROCESS MODULES, LUBRICATION SYSTEMS, TANKS, VESSELS, PRESSURE VESSELS, COMPRESSOR PACKAGES, AUXILIARY SYSTEMS, EQUIPMENT BASES AND ASSEMBLIES, HEAT EXCHANGERS, THERMAL CONTROLLERS, PROCESS TRAIN EQUIPMENT, FUEL GAS CONDITIONING SYSTEMS, GENERAL MODULES, HYDRAULIC CONTROL MODULES AND PANELS, FILTRATION AND SEPARATION SYSTEMS, FOR THE PETROCHEMICAL, GAS PRODUCTION, GAS TRANSMISSION, PULP AND PAPER INDUSTRIES
GS0421: ENGINEERING SERVICES FOR THE PETROCHEMICAL, GAS PRODUCTION, GAS TRANSMISSION, PULP AND PAPER INDUSTRIES