Looking for used rails for China and Turkey

We are looking for following:
STANDARD Rail & GRADE 100% used (R50 - R65)
STANDARDS: International Standards ISRI Codes 27-27, R50-R65 Rails
CHARACTERISTICS:
C: 0.54 - 0.82%
If: 0. 18 - 0.40%
Mn: 0. 60 - 1.05%
S: 0.04% MAX
P: 0. 035% MAX
As: 0.01% MAX
Quantity: 800,000 tons x 12 months
CIF: China and Turkey