| 摘要 |
The modular construction element according to the invention consists of a head (2) in the form of a convex cylindrical section (4), a shaft (3) which constitutes a profile delimited by three concave surfaces (5, 6, 7), namely two lateral surfaces (5, 6) and one frontal surface (7), each of these three concave surfaces (5, 6, 7) having a radius of curvature identical to that of the head, the two lateral concave surfaces (5, 6) being arranged symmetrically with respect to the vertical median plane passing through the centre of the cylindrical section (4) of the head (2). <IMAGE>
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