| 摘要 |
A locking closure (10) for closing the filler opening of an oil storage tank (2), said locking closure comprises an outer part (16) defining a fitting boss (12) securable to a filler opening of an oil storage tank and an inner part (20) insertable into the outer part in the manner of a plug to close the filler opening, the inner part having a locking mechanism operable to secure the inner part in the neck (4) of the outer part. |
