It consists of pannels,pins, post end, , bolt, chord reinforcement ,truss bolt and chord bolt. 1 Panel Bridge 2 Factory provided directly 3 Manual handling ... the female end of the other, aiming the pin hole and inserting the pin. Holes’ function of truss: chord member bolt hole ... or reinforced bridge, by inserting the truss bolt or chord member bolt into the chord member bolt hole, so as to connect the ...