| 摘要 |
<p>Arm to distribute concrete comprising a plurality of articulated segments (12-16) selectively able to be folded back and extended with respect to each other, made of composite material, wherein at least one of said segments (12-16) comprises at least a first tract (22) and a second tract (23), each having a constant cross section (27, 29), wherein the section size of the first tract (22) is different from the section size of the second tract (23), a connection tract (25) being provided between said first tract (22) and said second tract (23).</p> |
