GB/T 28414
GB/T 28414 (Structural section steels with improved seismic resistance)· GB (China) · 4 materials
| Designation | Material group | |
|---|---|---|
| Q235KZ | Structural and constructional steels | chevron_right |
| Q345KZ | Structural and constructional steels | chevron_right |
| Q420KZ | Structural and constructional steels | chevron_right |
| Q460KZ | Structural and constructional steels | chevron_right |