Common metals and alloys thereof; steel alloys; titanium and titanium alloys; nickel and nickel alloys; metal tubes; metal pipes; metal tubes and pipes for the oil and gas industries, including but not limited to metal pipes and tubes for extracting hydrocarbons, metal pipes and tubes for pipelines, metal pipes and tubes for gas; tubular metal drill strings; metal well-casing tubes and pipes for wells; casings of metal for oil wells; metal assembly devices for metal tubes and pipes including but not limited to curves, bends and couplings of metal, metal joints, metal sleeves, clamps of metal, flanges of metal; hollow bars of metal; hollow sections of metal; ducts of metal for ventilating and air conditioning facilities; water pipes of metal; metal tubes and pipes for the building industry, building materials of metal, building elements made of metal, metallic piles for foundations; metal pipes for supporting wind generators; metal pipes and tubes for the geothermal industry; metal tubes and pipes for the extraction of fluids, gas or petroleum; metal pipes and tubes for the chemical and petrochemical industries; metal pipes and tubes for the nuclear industry; metal tubes and pipes for the thermal energy industry; pipes and tubes of metal for the mechanical engineering industry; metal pipes and tubes for machining parts; pipes and tubes of metal for the manufacture of bearing races; blanks for the manufacture of metal tubes and pipes; metal or mainly metal protective end pieces for metal tubes and pipes and for metal tube and pipe assembly devices; steel masts; Metal tubes and pipes for oil and gas drilling, use in operating oil and gas fields, or transporting gas or petroleum, incorporating transponders, transmitters, remote control apparatus and electric conductors

Tubes of metal for lifting devices; metal tubes and pipes for boilers; metal tubes and pipes for gas condensers; metal tubes and pipes of collectors; metal tubes and pipes of water heaters; metal tubes and pipes of steam engines; metal tubes and pipes of oil refining machines; metal tubes and pipes of superheaters; metal tubes and pipes of superchargers; metal tubes and pipes of heat exchangers; metal tubes and pipes of electricity generators; metal tubes and pipes of nuclear reactors; metal tubes and pipes of evaporators; metal tubes and pipes of coolers; metal tubes and pipes of air conditioners; metal tubes and pipes of drying apparatus; metal tubes and pipes of ventilation apparatus; metal tubes and pipes for actuators; power operated machine tools, namely, machining inserts; metal drilling tools; metal pipes and tubes for ball bearings; metal cylinders for machines; electric, gas or laser operated welding machines

Apparatus and instruments for monitoring and inspection of oil drilling; apparatus and instruments for inspection of oil pipelines; apparatus and instruments for checking and supervising the status and manufacture of metal pipes and tubes; apparatus and instruments for measuring tubes, metal pipes; apparatus and instruments for measuring couplings and connections for metal pipes and tubes; measuring apparatus and instruments, namely, calipers and gauges; measuring apparatus and instruments for metal tubes and pipes for oil and gas drilling; transponders; transmitters of electrical and electronic signals; remote control apparatus for determining information as to the origin, composition, dimension, date of manufacture, geo-location, operating characteristics, condition, and client-specific information of tubes and pipes; electrical conductors; software for use in connection with tubes and pipes, namely, for recording, monitoring, transmitting, supervising and inspecting the origin, composition, dimension, date of manufacture, geo-location, operating characteristics, condition, and client-specific information of tubes and pipes; diagnostic apparatus for non-destructive testing of tubes and pipes and not for medical use

Tubes and pipes of metal for use in energy generating facilities, including, but not limited to tubes and pipes of metal for heating facilities, metal tubes and pipes for thermal power plants, tubes and pipes made of metal for nuclear power plants, tubes and pipes of metal for use in power stations, tubes and pipes of metal for steam generating facilities, tubes and pipes of metal for facilities for generating electricity; metal pipes and tubes for chemical facilities; metal pipes and tubes for refining distillation towers; metal tubes and pipes for water distribution facilities

Protective end pieces made of synthetic and/or composite materials, namely, polymers, rubber or composites including mainly a polymer or rubber for metal pipes and tubes and for assembly devices for metal tubes and pipes

Information and advice on construction; advice and information relating to the drilling of oil or gas wells; advice and information on completion of wells; advice and information concerning the laying and maintenance of oil pipelines; rental of construction equipment; installation, maintenance and repair of machines, tubes and pipes; repair information regarding the repair of metal tubes, pipes and tubular elements; construction of pipelines and ducts, laying of pipelines and ducts, repair of pipelines and ducts; underwater repair services; information on installation and use of assembly devices for pipes and tubes of metal; information on metal tubes and pipes for drilling and operating of oil and gas wells; information on metal tubes and pipes for drilling and operating geothermal wells; information on installation and use of metal tubes and pipes for mechanical applications and construction regarding oil and gas wells, geothermal wells, pipelines, buildings, automobiles, ball bearings, actuators, windmills, lifting equipment, and manufacturing and building equipment; technical advice regarding the aforesaid services

Information regarding treatment of materials, namely, metal and steel; mechanical processing and treatment of metal objects, namely, forging, machining tubes and pipes, tube and pipe threading, surface treatment of pipes and tubes, and metal plating; welding services; welding of pipelines; rental of welding machines and equipment; rental of auxiliary welding machines; information on the use of welding equipment and the welding of metal pipes and tubes; information on metal tubes and pipes for use in thermal power stations; information on processing of metal tubes and pipes for mechanical applications and construction regarding oil and gas wells, geothermal wells, pipelines, buildings, automobiles, ball bearings, actuators, windmills, lifting equipment, and manufacturing and building equipment; technical assistance regarding the aforesaid services, namely, advise and consultation

Organization and conducting of educational colloquiums, conferences and seminars regarding the use of metal tubes and pipes for transporting liquid, gaseous fluids or petroleum, assembly devices for metal pipes and tubes, drilling and operating oil, gas and geothermal wells, welding equipment and welding of metal pipes and tubes, mechanical applications of metal pipes and tubes, building and construction applications of metal tubes and pipes, and the use of metal tubes and pipes for thermal power plants; training on the use of metal tubes and pipes for transporting liquid or gaseous fluids or petroleum; training concerning assembly devices for metal pipes and tubes; training concerning metal tubes and pipes for drilling and operating oil and gas wells; training concerning metal tubes and pipes for drilling and operating geothermal wells; training on the use of on welding equipment and welding of metal pipes and tubes; training concerning metal tubes and pipes for thermal power plants, mechanical applications and construction; technical assistance regarding the aforesaid services, namely, advice and consultation

Evaluations, assessments and research in the fields of science and technology provided by engineers regarding drilling of oil, gas or geothermal wells, use of pipes and tubes for operation wells, assembly of pipes and tubes, transportation of liquids, oil or gases in pipelines, use of pipes and tubes in construction and mechanics; research and development of new products for others; technical project studies regarding drilling of oil, gas or geothermal wells, use of pipes and tubes for operation wells, assembly of pipes and tubes, transportation of liquids, oil or gases in pipelines, use of pipes and tubes in construction and mechanics; research and development of new products for others; scientific laboratory services; testing of materials; engineering surveying; engineering; oil and gas well testing; analysis and advice on oil-field exploitation; modeling and simulating work done by computers for others regarding pipes, pipelines, tubes, tube assemblies and the use of pipes, tubes and pipelines; mechanical research; advice and information on the design of oil or gas wells; research in the field of environmental protection; Quality control of the design, testing, manufacture and prototypes of metal and steel pipes, tubes, pipelines and tubular elements, and of pipe, tube and tubular element connections; technical assistance regarding the aforesaid services, namely, advice and consultation