Request for steel sheets and pipes Turkey

we are urgently requesting supplier for steel sheets and pipes with the following specifications:
1. A283 Gr.C Plate 10*1000*2000
2. A283 Gr.C Plate 5*2500*6000
3. A283 Gr.C Plate 6.35*2500*6000
4. ASTM A36 Angle Equal 60*60*6*6000
5. ASTM A36 Angle Unequal 80*60*8*6000
6. IPE80 80*46*3.8*6000
7. HE 200B 200*200*9
8. U140 Channel 140*60*7*10*6000
9. U180 Channel 180*70*8*11*6000