UNI EN 10253-1
UNI EN 10253-1 (Butt-welding pipe fittings - Part 1: Wrought carbon steel for general use and without specific inspection requirements)· UNI (Italy) · 2 materials
| Designation | Material group | |
|---|---|---|
| S235 | Structural and constructional steels | chevron_right |
| S265 | Structural and constructional steels | chevron_right |