6517-6520-tower section

Dimension specifications: The common external dimensions are 2.0m in length, 2.0m in width, and 2.8m in height.
Material and specification of main chords: It generally uses 180×12.5 square tubes as main chords, with materials mostly being high-strength steels like Q355B, to ensure the load-bearing capacity and stability of the standard section.
Connecting components: Forged dovetail bolt connection sleeves are adopted, and the screw rods are 10.9-grade bolts of M36×350 specification. Each set of standard sections is usually equipped with 12 sets of bolts to ensure a firm and reliable connection.