adjustable speed hydraulic coupling
Hydraulic Coupling
液压耦合
液压联轴节
液力偶合器
液力联结器
液压离合器
液压联结器
液力耦合器
液压联轴器
液力联轴器
液力接头
调速型偶合器
液压钻机
液粘调速离合器
Hydraulic Coupling Device
hydraulic coupling drive
AC motor speed governing system
AC speed governing system
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