 |
| |||
| drum gate with upstream hinge | |||
| gate with floating drum | |||
| секторный затвор с верховой осью вращения: 3 phrases in 2 subjects |
| Hydraulic engineering | 2 |
| Technology | 1 |
|
| |||
| drum gate with upstream hinge | |||
| gate with floating drum | |||
| секторный затвор с верховой осью вращения: 3 phrases in 2 subjects |
| Hydraulic engineering | 2 |
| Technology | 1 |