alloy steel 1. Description: Alloy steel-cold drawn steel-hexagonal bar 2. Specification: S7-S50 mm 3. Standard: DIN,JIS,ASTM alloy steel1. Description: Alloy steel-cold drawn steel-hexagonal bar2. Specification: S7-S50 mm3. Standard: DIN,JIS,ASTM,AISI,BS,SAE,ISO,TOCT,GB,ABNT4. Payment: By T/T or L/C, 5. Delivery: 10-30 days6. Grades:SAE/AISI: 3415, 4130, 4135, 4140, 4142, 4320, 4340, 5115, 5120, ...