- water sealed valve
- water-sealed valve
- 水封: water block; water closing; ...
- 阀: established house or power g ...
- 水封: [油工] water block; water closing; water lute; water seal◇水封爆破 waterinfusion blasting; 水封槽 water sealed tank; 水封储气器 water-sealed gas holder
- 密封阀: seal valve
- 波纹膜封阀: bellows sealed valve
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