ISTEK has proved its quality with the research and development works made in renewable energy and solar energy systems, international certificates and test results which are obtained from independent laboratories.
ISTEK Solar Collectors are used in facilities such as Hotels, Residences, Sport Complexes and Factories in order to meet the need of hot water. ISTEK, carrying on business since 1982, exports its products to 30 countries in 5 continents with its production of copper collector, selective-surfaced copper collector and aluminum collector.