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By: Shizhan at 9/17/2021 at 10:50:52 PM ET

Compared with the prior art, the utility model has the following beneficial effects: by setting a quadrangular spigot truss
 composed of No. 1 quadrangular truss, No. 2 quadrangular truss and aluminum tube as the main structure, it can be used when not in use or when moving The folding head and hinge aluminum are used for folding, thereby reducing the footprint and facilitating packaging and transportation. By setting the folding H-shaped joint male and the folding female aluminum plug to connect, the aluminum round tube and the folding head can be installed in No. 1 and 4 Between the square truss and the No. 2 square truss, the operation is convenient and the efficiency is high; through the No. 1 square truss, the No. 2 square truss and the aluminum pipe surface are equipped with fireproof water glass layer, anti-corrosion epoxy resin layer and high temperature resistance The baking varnish layer can enhance the fire, corrosion and high temperature resistance of the aluminum light truss, thereby extending the service life of the square truss. Therefore, it is highly practical and suitable for wide promotion.

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