| 摘要 |
The invention relates to a liquid (fluid) level intended for checking the flatness of a surface with respect to the vertical and/or the horizontal, composed of a long straight body and a measurement cell. This liquid (fluid) level is characterised in that the long straight body 2 is formed by two mirror-image drawn sections, one of which constitutes the base and the other the lid, the latter being provided with an opening 6 used as a window for reading the measurement cell 3. The invention is relevant to the manufacturers of hand tools. <IMAGE>
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