Arc shaped upward bend is a core upward turning accessory in cable tray systems, mainly used for vertical upward turning transition of trays, adapting to mainstream tray models such as trough, ladder, and pallet. It is widely used in various wiring projects such as industrial plants, commercial buildings, computer room distribution, municipal electromechanical, etc. It is a commonly used component for laying high and low drop lines. The product adopts a smooth arc-shaped integrated molding process, replacing the traditional right angle bending structure, allowing the cable to smoothly transition during the turning process, effectively avoiding problems such as excessive bending of the cable, wear of the outer skin, and compression of the core wire, greatly improving the safety and stability of electrical wiring. The arc-shaped structure has no dead corners, no dust accumulation, and is matched with a transparent version, which has excellent heat dissipation and ventilation effects, and is suitable for long-term continuous wiring conditions. The curved upper bend has standard dimensions, precise interfaces, tight on-site connections, and easy installation, which can effectively improve overall construction efficiency. The wiring is neat and smooth, making it more convenient for later inspections, wire changes, and line upgrades. With excellent structural design and versatility, it has become the preferred elbow accessory for fine electromechanical wiring.