... : 10#,15#,20#,30#,35#,40#,45#, Specification : 6-80MM Commodity:Cold Drawn Steel Round Bars1) Standard: GB/T 3078, GB/T9052) Steel Grade: 10#,15#,20#,30#,35#,40 ... made under ISO 9001. Our Advantages: 1) Fast Delivery: around 30 days below 50Metric Tons after sight of Irrevocable L/C ...