Long span cable tray
At present, long-span cable trays are generally assembled from pultruded FRP profiles, which are suitable for power cables, control cables, lighting cables and accessories. Compared with the iron bridge, it has the advantages of long service life (the general design life is 20 years), convenient installation and low cost (the proportion is only 1 / 4 of carbon steel, there is no need for hot work in construction, and the length of a single bridge can reach 8m or even longer), convenient cutting and no maintenance.
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