SYZX75绳索取心液动锤
SYZX75 wire-line coring hydraulic hammer
液动旋冲接头
hydraulic rotating connector
液动万能磨床
hydraulic universal grinding machine
液动三爪卡盘
Hydraulic three-jaw chuck
液动离合器与制动器
Clutch and brake with hydraulic pressure driving
液动离合器
hydraulically operated clutch
液动绞车
hydraulically-powered winch
液动换向阀
hydraulic change-over valve
hydraulicchange-over valve
液动冲击钻
the hydro-hammer impact- rotary drilling
液动冲击回转
hydraulic impact rotation