| 摘要 |
The mortar tank comprises two distinct parts (9,10) for adjusting the height and the shape of the joint (11) to be made. These two parts slide vertically on the tank transverse side (3). The first part adjusts the joint height independently of the position of the second part. The second part adjusts the shape of the joint as a function of its position in order to obtain a uniform joint over the whole width of the prefabricated part (7).
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