Since 1955, construction, textile, automotive, health, education, food and energy operating in the Holding; I provide support to the system at different locations in Turkey.

Ufak bir değişiklikle olur bu

I currently handle the system support of" the holding that operates in, construction, textile, automotive, health, education, food and energy since 1955" at different locations of Turkey.

Buda tam olmadı ama, başka biri daha ayar çekerse tam olacak.

Şöyle de olabilir

Im currently handling the system support of" the holding that operates in, construction, textile, automotive, health, education, food and energy since 1955" at different locations of Turkey.