A trough type cable tray is a continuous rigid structure used to securely support insulated electrical cables and raceways. Its unique design, featuring a solid bottom and side rails, makes it ideal for a wide range of applications, from industrial plants to. Unlike open ladder systems, trough-type cable trays provide a semi-enclosed structure that balances protection, ventilation, and cable organization in a way that fits modern infrastructure demands. If your priority is protection, organization, and long-term reliability, this system. Surface treatment:Electro galvanized,Hot dip galvanized,Powder coating. Light weight and heavy load ; 2.