| 摘要 |
<p>The chair for a reinforcing bar of a reinforcing grid is a one-piece plastics moulding and comprises an upper part with at least one pair of opposed seats (24) for the bar, and a set of outwardly splayed legs (8) extending downwardly from the upper part, adjacent legs being interconnected at or adjacent their lower ends by transverse bracing (12) extending between the adjacent legs (8).</p> |
