A mast comprises 4 panels which can be identified by:
2 panels with telescoping lugs and 2 panels without telescoping lugs.
The panels provided with ladder fixing gussets must be face to face. The panels are assembled by 20 special fishplate bolts.In every case , the heads of the bolts are on the outside. The assembling of masts between each other is by means of 8 shafts connected 2*2 by 4 pins and equipped with a set of accesses as described.