Aluminum billets purchase to Turkey

We would like to buy aluminum billets.
Specification: aluminum billets, grade 99.9% and above.
Origin: Central Asia
Quantity: Min.: 10,000 tons
Packaging: Folding Billets
Delivery: CIF Ambarli / Istanbul
Payment: LETTER OF CREDIT
Alloy: 6060-6063
Diameter: 127-152-178-203