 |
| |||
| penetration hardening; deep hardening; depth hardening | |||
| глубокая закалка: 5 phrases in 3 subjects |
| Rail transport | 1 |
| Technology | 3 |
| Transport | 1 |
|
| |||
| penetration hardening; deep hardening; depth hardening | |||
| глубокая закалка: 5 phrases in 3 subjects |
| Rail transport | 1 |
| Technology | 3 |
| Transport | 1 |