High-Quality round rods
| Qib Steel | Siv | Rockweell Hardness | Ua raws li tus qauv |
| 45 (SAE1045, S45C / S48C) | Rau Qib 8.8 | HRC28-32 | GB/T 699 |
| 40 Cr (SAE5140, SCr440) | Rau Qib 10.9 | HRC32-39 | GB/T 3077 |
| 35 CrMo (SAE4135, SCM432 / SCRRM3) | Rau Qib 12.9 | HRC39-42 | GB/T 3077 |
| 42CrMo (SAE4140, SCM440) | Rau Qib 12.9 | HRC39-42 | GB/T 3077 |
Txiav cov khoom los ntawm qhov hnyav thiab ntev
