Cinematographic film development;
photograph enlargement, photograph printing, photographic film development;
rental of photographic machines and instruments for developing, printing, enlarging or finishing;
processing of oil;
processing of gas;
refining of oil and gas;
wastewater treatment services, water treatment services, namely desalination, purification, cleaning of ion-exchange resins;
membrane regeneration services;
operating electric power plants of others;
consultancy regarding operation of electric power plants;
provision of information to others, on a global computer network, concerning industrial systems for water purification
Cinematographic film development;
photograph enlargement, photograph printing, photographic film development;
rental of photographic machines and instruments for developing, printing, enlarging or finishing;
processing of oil;
processing of gas;
refining of oil and gas;
wastewater treatment services, water treatment services, namely desalination, purification, cleaning of ion-exchange resins;
membrane regeneration services;
operating electric power plants of others;
consultancy regarding operation of electric power plants;
provision of information to others, on a global computer network, concerning industrial systems for water purification.