23-063 Double Track Truss Catenary Gantries (6 Pack)Set of Double Track Truss Catenary Gantries. It is a truss structure overhead wire pillar with different types of "double track wide overhead wire pillar" used in the curved part (with cant) of the double track line. It can be used not only on the ground but also on an elevated structure. It can pass smoothly even when the vehicle is tilted. Contents Overhead wire pillar x 6 Tension adjustment device x 4 Ground wide overhead wire pillar base x 6