1) swing cylinder relief valve
转盘油缸安全阀
2) steering cylinder relief valve
转向油缸安全阀
3) swing circuit relief valve
转盘油路安全阀
4) swing cylinder valve
转盘油缸阀
5) cylinder relief valve
油缸安全阀
6) steer cylinder auxiliary relief valve
转向油缸辅助安全阀
参考词条