| 摘要 |
The invention is a new concrete element (Z) for road marking and outdoor paving having a solid three-dimensional form, with bottom surface (F) resting on surface (S) at least one housing or basin (V) is obtained for containing a layer of refracting mixture (M) comprising in turn a plurality of spheres or microspheres (R) mixed with a hardening support resin or glue (C).
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