| 3/20/2018 | 732690980019 | BUILTABLE AIR DUCT INSULATED
| 1099 | Meter | 4001.25 | N/A | SÖNMEZ GLOBAL YAPI VE TICARET ANONIM SIRKETI |
| 3/25/2018 | 732690600000 | 35MM SEALED AIR DUCT FLANCE
| 1000 | Meter | 1436 | N/A | ERDEMLER ELEKTROMEKANIK TAAHHÜT VE TICARET LIMITED SIRKETI |
| 3/1/2018 | 732690980011 | 1 MDN FIXING CLAMP, PLGK 164-167 MM PROLINK G PIPE CLAMP, 80MM LSK4 ROUND AIR DUCT CLAMP, 100MM
| 1418 | Units | 1903.42 | N/A | LINK YAPI SANAYI VE TICARET ANONIM SIRKETI |
| 3/5/2018 | 730690000011 | 0,60MM AIR DUCT
| 209 | Units | 4494 | N/A | GENERAL MÜTEAHHITLIK MÜHENDISLIK INSAAT ELEKTRIK SANAYI VE TICARET LIMITED SIRKETI |
| 3/5/2018 | 730490009000 | GALV.SPIRAL ROUND AIR DUCT, SPIRAL DUCT
| 349 | Meter | 3961.22 | N/A | MUTLU COSAR |
| 3/7/2018 | 730690000011 | AISI 304 STAINLES STEEL AIR DUCT 80X35CM FITTINGS / STAINLESS DUCT, AISI 304 STAINLES STEEL AIR DUCT 80X35CM AIR DUCT / STAINLESS DUCT, AISI 304 STAINLES STEEL AIR DUCT 30X30CM FITTINGS / STAINLESS DUCT AIR DUCT 30X30CM FITTINGS / STAINUCLES AIR DUCT
| 54.46 | Meter Square | 4139.15 | N/A | KARTEL DOGALGAZ HAVALANDIRMA VE BACA SISTEMLERI SAN.TIC.LTD.STI. |
| 3/19/2018 | 730690000011 | AIR DUCT
| 296 | Units | 26118.55 | N/A | MAKYAP ELEKTROMEKANIK ANONIM SIRKETI |
| 3/8/2018 | 730690000011 | INSULATED AIR DUCT
| 5 | Units | 1514.27 | N/A | HYDRA INSAAT SANAYI VE TICARET ANONIM SIRKETI |
| 3/20/2018 | 730690000011 | GALVANIZED SHEET AIR DUCT 0,60 MM-0,80 MM -1,00 MM, 0,50 MM
| 2726.4 | Meter Square | 22886.91 | N/A | GAMDA INSAAT MIMARLIK MÜHENDISLIK SANAYI TICARET LIMITED SIRKETI |
| 3/8/2018 | 730792900011 | INSULATED AIR DUCT DIRECTION
| 10 | Units | 3000.86 | N/A | HYDRA INSAAT SANAYI VE TICARET ANONIM SIRKETI |