Horizontal elbows provide directional transitions in cable tray systems, with 4"–7" rail heights, 6"–36" widths, and 12"–36" radii. Available in ladder and solid bottom aluminum designs. Class 1: Designed for use with NEMA Classes 12B. Ensure your cable tray solution is designed for your application, with our vast range of ladder tray fittings. Diagonal Corner R=75 mm (Standard) 2. Curve Corner R=300 mm (Request)The Ladder Type Cable Trays manufactured by Hind Runway Systems are built with world-class quality specifications. We manufacture Ladder Type Cable Trays with different widths ranging from 150mm to 1200 mm and height ranging from 50 mm to 150 mm.