The document contains specifications for cable ladder and tray systems including dimensions, materials, and part numbers. For each component type, it provides. Hubbell's NEXTFRAME® Ladder Tray is the effective and widely used cable runway that supports and delivers bundles of cable between cabinets, racks, and closets, along walls, and suspended from ceilings. The Ladder Tray features light, rugged, tubular steel construction. It is designed for. Brilltech Engineers Pvt. Each cable tray type performs a different function and comes in various materials such as aluminum, galvanized steel, and FRP. What is Cable Tray? A cable tray is a unit, or set of units. Cablofil is the global gold standard for total cable management.