Valves of metal or principally of metal not being parts of machinery; all other goods included in this this class.

Valves of rubber or vulcanised fibre and all other goods included in this class

Valves in class 20 not of metal or principally of metal, and not parts of machinery; all other goods included in this class.

Central heating installation; Installation and repair of air conditioning apparatus; Installation of solar energy systems; Heating equipment installation and repair; Installation of instrumentation systems; Building project management; Building project management (building construction supervision); On site building project management; Mechanical engineering services (construction)

Engineering consultancy; Engineering design; Engineering drawing; Engineering feasibility studies; Mechanical engineering services (design); Advisory services relating to energy efficiency; Consultancy in the field of energy-saving; Energy auditing; Energy use and conservation consultancy; Environmental sustainability assessment services for buildings and developments; Environmental sustainability consultancy services

Materials for use in filtration (textile)

Central heating installation

Engineering consultancy

Cooling or heating devices containing heat exchange fluids, not for medical purposes