37
Information, information and advisory in relation to the following services: Installation of hydropower systems; Civil engineering, in the following fields: Water irrigation, Information, Information and advisory services
39
Water supplying, Distribution and provision of water; Water supplying and Water distribution; Information and consultancy relating to the aforesaid services
40
Water treating, Water pollution control, Water purification, Demineralisation of water and Regeneration of water, Desalination of water; Information and consultancy relating to the aforesaid services
41
Teaching, in relation to the followings fields: Water management, water safety and water pollution; Ecologically orientated aquatic instruction; Information and consultancy relating to the aforesaid services
42
Water quality control services, Water analysis, Monitoring of water quality; Engineering design and Technical development, in relation to the following goods: Water supply installations and Water production plants; drafting, in the following fields: Civil engineering; Design of engineering works for flood prevention; Design services, in the following fields: Civil engineering; Information and consultancy relating to the aforesaid services
44
Pest and vermin control, For civil engineering purposes; Information and consultancy relating to the aforesaid services