金属阀杆填料
metallic valve stem packing
带防脱压紧螺母
Gland Nut with Anti-Drop Off
倾斜油缸压紧螺母
tilt cylinder packing nut
泵阀压紧簧
pump valve pressing spring
阀调节螺钉锁紧螺母
valve adjusting screw locknut
阀调整螺钉锁紧螺母
valve adjustment screw locknut
减压阀杆
pressure reducing valve stem
喷油阀螺母拆卸工具
fuel injection valve nut removal tool