| 3/29/2018 | 730690000011 | AIR CONDITIONING SANT. VENTILATION CHANNEL AND EQUIPMENT
| 1 | Set | 35728.71 | N/A | SUNTEK MEKANIK INSAAT INSAAT MALZEMELERI ELEKTRIK MÜHENDISLIK GIDA TEKSTIL SANAYI VE TICARET LIMITED SIRKETI |
| 3/6/2018 | 730690000011 | VENTILATION DUCT-REDUCTION-DIRSEGI-S PART-COLLECTOR-BOX
| 50 | Units | 1179.28 | N/A | PARANTEZ MÜHENDISLIK MIMARLIK MEKANIK HAVALANDIRMA SIHHI TESISAT INSAAT IZOLASYON TICARET LIMITED SIRKETI |
| 3/29/2018 | 730690000011 | STAINLESS VENTILATION DUCT
| 34 | Meter Square | 2654.8 | N/A | KARTEL DOGALGAZ HAVALANDIRMA VE BACA SISTEMLERI SAN.TIC.LTD.STI. |
| 1/25/2024 | 730640809000 | FLOW AND VENTILATION PIPES | 1 | SET | 0 | N/A | SEFF TARIM ÜRÜNLERİ CHEMISTRY INDUSTRIAL PHARMACEUTICAL MINING REAL ESTATE CONSTRUCTION IMPORT EXPORT INDUSTRY AND TRADE LIMITED COMPANY |
| 1/19/2024 | 730690000011 | 13MM INTERNALLY INSULATED VENTILATION DUCT | 33.6 | METRE | 0 | N/A | DİHA GROUP REAL ESTATE CONSTRUCTION INDUSTRY AND TRADE LIMITED COMPANY |
| 3/14/2018 | 730690000011 | GALVANIZED VENTILATION DUCT 55 * 45 * 120 CM.
| 39 | Units | 1408.07 | N/A | ÖMER TOLGA ÇAKIR |
| 1/8/2024 | 730640809000 | VENTILATION PIPES | 60 | UNIT | 0 | N/A | MELTEM AIR CONDITIONING, HEATING AND COOLING SYSTEMSAN.TİC.LT.Ş |