Size range：Φ48.3mm～508mm×1.5mm～60mm
Common size: Φ48.3mm～508mm×1.5mm～60mm
Grade: BJ450, BJ770, BJ890, HSM450, HSM770, HSM890, HSM960, S770QL, S890QL, Q390, Q460, Q690, etc.
Standard: GB/T 30584/GB/T1591, Q/OHAD015 or technical agreements

Common size: Φ60.3mm～1016mm×8.5mm～80mm
Grade：20#, 35#, 45#, 27SiMn, 30CrMnSiA, 30MnNbRe, etc.
Standard: GB/T17396 or technical agreements
Optimal Service：precision cold drawing with ID tolerance 0~0.054%, straightness up to 0.5mm/m, tensile strength≥610 MPa, yield strength ≥360 MPa, elongation≥14%.

Common specification:
Φ87mm×10mm, Φ108mm×4.5mm, Φ108mm×6mm, Φ127mm×4.5mm, Φ127mm×6mm, Φ133mm×9mm, Φ133mm×14mm, Φ146mm×6mm,  Φ146mm×8mm, Φ168mm×6mm, Φ168mm×8mm, Φ168mm×10mm, Φ178mm×10mm, Φ178mm×15mm, etc.
Grade/Steel grade: DZ40 (50Mn, 37Mn5) DZ50/DZ55 (45Mn2, 36Mn2V, 42MnMo7), R780(36Mn2V, 42MnMo7) , BG850, 09Mn2Si, etc.
Standard: GB/T9808, YB/T5052, Q/BQB230, Q/OHAD006, API SPEC 5D or technical agreements

Size range： Φ46mm×4.5mm, Φ57mm×6mm, Φ64mm×6mm, Φ76mm×8mm, Φ87mm×10mm,
Grade: 23CrNi3Mo, 55SiMnMo, etc.
Standard: GB/T1301 or technical agreements

Size range：Φ74mm～232mm×11mm～28mm
Grade: 20CrMo, 35CrMo, 42CrMo, 40CrMnMo, 40CrNiMo, etc.
Standard: GB/T8162 or technical agreements

Size range：Φ42mm～760mm×4mm～120mm
Grade: Q345B, 27SiMn, 30CrMo, 35CrMo, 42CrMo, HG550, HG650, and HG850, etc.
Standard: GB/T 34109 or technical agreements

Size range：Φ325mm～630mm×20mm～35mm
Grade: 35CrMo, 42CrMo, Q345B, Q345D, Q390, Q460, 4130, etc.
Standard: GB/T8162, ASTM-A519 or technical agreements