hydraulically balanced valve
... 液压平衡式安全阀 hydrocushiontypereliefvalve 液压平衡阀 hydraulically balanced valve 轧辊液压平衡 hydraulicbalance ...
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短语
船用液压平衡阀
marine hydraulic control balance valves
船用液压控制平衡阀
marine hydraulic control balance valve
液压平衡式安全阀
hydrocushion type relief valve
液压[液力]平衡阀
hydraulically balanced valve