BS 2S 117
BS 2S 117 (Specification for aircraft material. 1 per cent chromium steel (55/65 tonf/sq in: limiting ruling section 1⅛ inch))· B.S. (United Kingdom) · 1 materials
| Designation | Material group | |
|---|---|---|
| S 117 | Structural and constructional steels | chevron_right |