Qetaf Multi Span GreenHouses (With Cooling System) Qetaf Multi Span GreenHouses (With Cooling System) is with various measurements based on customer demand and land area to be used in protected agriculture provided with cooling systems and heating systems as well as various types of covers such as polycarbonate cover, fiber glass cover and plastic cover. I am the European cooling systems and coverings with the provision of industrial guarantees on these systems and also ensures the company harvested agricultural houses protected the metal structures used in the manufacture of multi-house protected agricultural houses for a period of (10) years The wind speed is up to 110 km / h