oil filler plug 注油堵

cell filler plug 蓄电池加电水口塞 ; 电池加液盖 ; 蓄电池联条

differential filler plug 差速器加注螺塞

filler plug opening 加注口塞孔

rear axle filler plug 后轴壳注油孔塞

fuel filler plug 加油塞

transfer gearbox filler plug 分动齿轮箱加注口塞

oil filler plug hole 加油器塞孔

hoist cylinder filler plug 起重机油缸注入塞