GB/T 37622
GB/T 37622 (Hot rolled steel bar of fire resistant for the reinforcement of concrete)· GB (China) · 3 materials
| Designation | Material group | |
|---|---|---|
| HPB300FR | Structural and constructional steels | chevron_right |
| HRB400FR | Structural and constructional steels | chevron_right |
| HRB500FR | Structural and constructional steels | chevron_right |