Double Wall Corrugated Duct Telecom Applications Used as the main duct in main-duct/sub-duct network design. Protection of ducts across rivers, culverts and disused canals. Protection of ducts in rail/road crossings. Protection of ducts & optic fibre cables in city networks. Casing of copper cables. Used as a casing duct for simultaneous placement of quad cables and optic fiber cables alongĀ railway track.
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