 |
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| tumbler strength (ГОСТ 15137-77 Nik-On/Off) | |||
| прочность во вращающемся барабане: 5 phrases in 2 subjects |
| Metallurgy | 4 |
| Technology | 1 |
|
| |||
| tumbler strength (ГОСТ 15137-77 Nik-On/Off) | |||
| прочность во вращающемся барабане: 5 phrases in 2 subjects |
| Metallurgy | 4 |
| Technology | 1 |