11
INDUSTRIAL HEAT EXCHANGERS AND FLUID HEATERS
16
TECHNICAL REPORTS AND REPRINTS OF TECHNICAL PAPERS AND ARTICLES
35
ACQUISITION OF RIGHTS IN PROCESSES FOR OTHERS; PROCUREMENT OF PROCESS UNITS AND ASSOCIATED EQUIPMENT FOR OTHERS, ALL WITH RESPECT TO THE CHEMICAL, PETROCHEMICAL, PETROLEUM REFINING, METALLURGICAL, NUCLEAR, PULP AND PAPER, PLASTIC, SYNTHETIC FIBER, FERTILIZER, FOOD PROCESSING AND COAL PROCESSING INDUSTRIES
37
CONSTRUCTION, MAINTENANCE, STARTUP, INITIAL OPERATIONS SERVICES, AND REPAIR OF PROCESS UNITS, ASSOCIATED EQUIPMENT AND FACILITIES IN THE CHEMICAL, PETROCHEMICAL, PETROLEUM REFINING, METALLURGICAL, NUCLEAR, PULP AND PAPER, PLASTIC, SYNTHETIC FIBER, FERTILIZER, FOOD PROCESSING AND COAL PROCESSING INDUSTRIES, AND FOR POWER PLANTS
40
TREATING AND PROCESSING OF METALLURGICAL, PETROLEUM-DERIVED AND COALDERIVED MATERIALS
42
ENGINEERING SERVICES-NAMELY, CONSULTING, TESTING, DESIGNING AND PROCESS DEVELOPMENT SERVICES AND CONDUCTING OF CHEMICAL ANALYSES FOR OTHERS IN THE CHEMICAL, PETROCHEMICAL, PETROLEUM REFINING, METALLURGICAL, NUCLEAR, PULP AND PAPER, PLASTIC, SYNTHETIC FIBER, FERTILIZER, FOOD PROCESSING AND COAL PROCESSING INDUSTRIES
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