● 360° hydraulic rotating ● Double cylinder system for closing.grab force ● High strength.wear resistance materials for reliability ● Check valve for safety ● 360 °液压旋转 ● 双油缸同步杆机构,作业平稳性好 ● 使用高耐磨材料,大大延长使用寿命 ● 安装平衡阀,增加了作业安全性