 |
| |||
| Herculoy | |||
| silicon bronze (1 ~ 5Si,少量 Mn、Fe、Zn,余量 Cu) | |||
| silicon bronze | |||
| |||
| P.M.G. alloy (4Si, 2Zn,2Fe,0.5Mn,余量 Cu); P.M.G. metal | |||
| 硅青铜: 29 phrases in 4 subjects |
| Construction | 1 |
| General | 3 |
| Metallurgy | 10 |
| Technology | 15 |
|
| |||
| Herculoy | |||
| silicon bronze (1 ~ 5Si,少量 Mn、Fe、Zn,余量 Cu) | |||
| silicon bronze | |||
| |||
| P.M.G. alloy (4Si, 2Zn,2Fe,0.5Mn,余量 Cu); P.M.G. metal | |||
| 硅青铜: 29 phrases in 4 subjects |
| Construction | 1 |
| General | 3 |
| Metallurgy | 10 |
| Technology | 15 |