Cast iron rolls purchase request from Iran

This is our part specification:
- Rings that manufactured by ring rolling process.
- Material: Aluminium 7717
- We want in 2 sizes:
1- Outer Diameter:1760 mm
inner Diameter:1629 mm
Thickness:90 mm
2- Outer Diameter:1760 mm
inner Diameter:1620 mm
Thickness:70 mm