 |
| |||
| swing type check valve | |||
| automatic non-return valve; check valve; clack valve; non-return valve | |||
| válvula antirretorno: 4 phrases in 2 subjects |
| Earth sciences | 3 |
| Metallurgy | 1 |
|
| |||
| swing type check valve | |||
| automatic non-return valve; check valve; clack valve; non-return valve | |||
| válvula antirretorno: 4 phrases in 2 subjects |
| Earth sciences | 3 |
| Metallurgy | 1 |