Client: ERDEMIR Iron Steel Factories Contractor: PAKPAŞ İnş.Tic.A.Ş. & LINDE Consortium Sub Contractor: SETA INSAAT Scope: Turnkey project. 5. Air Purification Unit civil works, approximately 1000 tons steel construction manufacturing and erection, cold box erection, machinery and equipment erection, pipe racks and pipe erection, electrical and instrument installation.