oil level plug 油位塞

level plug opening 液面螺塞孔口

left final drive level plug 左侧最终传动油面螺塞

drive axle oil level plug 驱动桥油位螺塞

front final drive level plug 前端最终传动油平面堵塞

oil-level plug 油面测量计栓

pinion bearing cavity level plug 小齿轮轴承室油位螺塞

oil level check plug 油位检查丝堵 ; 油位检查塞

oil level inspection plug 油位检测塞