Interested in second quality used railway, 3-5 million tons

I'm interested in second quality used rail way ISRI Code 27-29. I am the agent of East Asian companies and we need to buy a large quantity of scrap iron, with the limits of three to five million tons. Shipping & payment term: ship and payment DLC. Destination port: East Asia or China any port.  Please respond, as well as, specifications, standards, quality and price.