... GB/T 3078, GB/T905 Steel Grade: 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#,45#,40Cr.3) Specification : 6- ... Our Advantages: 1) Fast Delivery: around 30 days below 50Metric Tons after sight of Irrevocable ...