 |
| |||
| beam roughing method; flat-down method (六角钢的) | |||
| 平轧法: 12 phrases in 4 subjects |
| Construction | 1 |
| Metallurgy | 6 |
| Technology | 4 |
| Textile industry | 1 |
|
| |||
| beam roughing method; flat-down method (六角钢的) | |||
| 平轧法: 12 phrases in 4 subjects |
| Construction | 1 |
| Metallurgy | 6 |
| Technology | 4 |
| Textile industry | 1 |