Based on this product's specifications, here are some alternatives and similar models
Baks elbow for cable tray 90° KKL50H42, 50 mm
Summary description:
Baks KKL50H42 is a 90-degree elbow component for cable tray systems with a 50 mm width. Designed to connect and redirect cable trays at right angles, it ensures organized routing of cables in electrical installations. Suitable for indoor and sheltered industrial or commercial applications where compact turns in tray runs are required.