摘要 |
<p>The connecting stake (1) is fixed on the upper flange of the beam (13), possibly by the interposition of a fret shaped plate (14), by means of two nails (9) and (10) by using a pneumatic nailing machine which acts on the heads of the nails so that the tips of the nails penetrate within the beam (13) on which the stake (1) is to be fixed. <IMAGE></p> |