土方机械 排液、加液和液位螺塞
Earth-moving machinery - Drain，fill and level plugs

2010-12-01

Earth-moving machinery — Drain, fill and level plugs
土方机械——排放、加注和液位塞

1993-12-23

Operation and maintenance of earth-moving machinery-Specification for drain, fizz and level plugs
土方机械的操作和维护 排水塞、起泡塞和液位塞规范

1994-08-15