先导端盖 End cover
变更或见其他配置
structure sany
excavator
弹簧 Spring
锁紧螺栓 Lock screw
主阀芯 MAIN SPOOL
压力补偿器(含堵头) pressure compensation
行走联阀片 Travel Valve
堵头 plug
弹簧座(2个) Spring seat
密封圈 Seal Ring
主阀芯 Main spool
工作阀片 Directional valve element
单向阀 One-Way Valve
二次溢流阀 Secondary Relief Valve