Cable tray manufacturing involves creating trays that are designed to hold, support, and protect electrical cables in various environments. Ltd is one of the trusted Cable Tray Manufacturers in Sierra Leone and brings you the products as per the need of. We are established cable tray manufacturers capable of manufacturing both ladder type and perforated type cable trays. The trays will be made out of 2. 0mm thick HRMS sheets with a standard length of 2500mm. The Project report for Cable Tray Manufacturing is as follows. This. Started back in 1983, Cable House is a recognized name engaged in manufacturing and supplying wide range including Hose Clamps, Cable Ties, Crimping Tools, Cable Tray, Industrial Connectors and more, to the national as well as the international market.