Izolir AD is an insulating materials manufacturer in Serbia. The company produces pre-insulated pipes and pipes for heating and gas systems. IzolirCOOL FIT PIPE - Izolir AD Zrenjanin Izolir AD ZrenjaninStatut akcionarskog drustva Izolir Zrenjanin (preciscen tekst) AD IZOLIR is the first domestic factory and leader in the field of pre-insulated pipes for district heating and following equipment, as well as in manufacturing pre-insulated pipes for high pressure gas pipelines. Read more. Najnovije vesti.