06
Drain traps [valves] of metal; water-pipe valves of metal;
steel pipes; metal fittings, couplings, connectors and clips
for cables and pipes; pipes and tubes of metal; reinforcing
materials of metal for pipes; rotating junctions of metal
for pipes; metal pipes and tubes for liquid and gas
transfer; metal tubing and tubing couplings for joining and
terminating pipes; containers of metal for chemicals,
compressed gases and liquids; water tanks of metal for
industrial purposes; metal drainage pipes; ducts of metal
for ventilating and air- conditioning installations
11
Heating, cooling, steam generating and air conditioning
installations and apparatus; heating and cooling apparatus
for dispensing hot and cold beverages; thermostatic valves
as parts of heating installations; steam heating apparatus
for industrial purposes; sprinkler systems for irrigation;
irrigation apparatus for agricultural and horticultural use;
swimming pool filters; swimming pool heaters; waste water
treatment and purification installations and apparatus; air
valves for steam heating installations; steam superheaters
for industrial purposes; ionization apparatus for the
treatment of liquids and gases for industrial, commercial or
agricultural use; temperature-controlled food and beverage
dispensing units, other than vending machines; water
distribution installations; gas purification apparatus;
dosing valves [parts of heating or gas installations];
regulating accessories for water or gas apparatus and pipes;
safety accessories for water or gas apparatus and pipes
37
Construction, installation, maintenance and repair of gas
and water supply and distribution apparatus; construction,
installation, maintenance and repair of gas and water
pipelines; construction, installation, maintenance and
repair of water pollution control equipment and water
purifying apparatus; construction, installation, maintenance
and repair services relating to water irrigation and
rainwater drainage systems; construction, installation,
maintenance and repair of environmental control systems;
construction, installation, maintenance and repair of
air-conditioning control systems; construction,
installation, maintenance and repair of food and beverage
dispensing units; provision of information relating to the
aforementioned services
40
Heat treatment of metal surfaces; treatment of materials by
laser beam; treatment and coating of metal surfaces; heat
treatment of pipes and tubes made of metal; treatment of
materials using ultrasonic waves to modify their properties;
treatment of metal parts to prevent corrosion using hot-dip
galvanizing and powder coating processes; surface finishing
of metal articles; coating and surface finishing of machines
and tools; custom manufacture of machines and tools with a
protective surface coating; processing of metal surfaces by
precision grinding and abrasive polishing; application of
thin films on the surfaces of objects by means of chemical,
mechanical, thermal, thermomechanical, chemical vapor
deposition, physical vapor deposition and vacuum deposition
processes; provision of information relating to the
aforementioned services
42
Engineering services relating to gas and water supply and
distribution systems; engineering services relating to gas
and water pipelines; engineering services relating to of
water pollution control and water purifying systems;
engineering services relating to water irrigation and
rainwater drainage systems; engineering services relating to
environmental control systems; engineering services relating
to air-conditioning control systems; technical design and
planning of pipelines for gas, water and waste water; design
and development of valves, regulators and controls for gas
and water supply and distribution systems; design and
development of food- and beverage dispensing units;
provision of information relating to the aforementioned
services