G 3475
G 3475 (Carbon steel tubes for building structure)· JIS (Japan) · 3 materials
| Designation | Material group | |
|---|---|---|
| STKN400B | Structural and constructional steels | chevron_right |
| STKN400W | Structural and constructional steels | chevron_right |
| STKN490B | Structural and constructional steels | chevron_right |