-
6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
metal tanks, reservoirs, storage structures, penstocks, and metal containers, piping, and conduit used in the exploration, production, refining, storage, transport, and processing of liquids and gases
-
37
Building construction; repair; installation services
construction management and construction project management services; and maintenance and repair of tanks, vessels, large steel structures, equipment, and facilities for the exploration, production, refining, storage, transport, and processing of liquids and gases
-
40
Treatment of materials
custom construction of tanks, vessels, large steel structures, equipment, and facilities for the exploration, production, refining, storage, transport, and processing of liquids and gases
-
42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software
engineering