| 摘要 |
A support system includes a structural post, the structural post comprising an open, approximately quadrilateral-shaped cross section comprising four sides and three vertexes. The structural post includes a number of returns formed on ends of a first side and a fourth side of the structural post, the first side and the fourth side defining an open portion of the open, quadrilateral-shaped cross section, and a number of coinings formed on a second side and a third side of the structural post, the second side and the third side sharing a vertex opposite the open portion. |
