In the field of construction machinery, due to its actual working conditions, most of the construction machinery vehicles are loaded with suspension booms, or special operation equipment, most of these booms and equipment have transmission length, angle, limit control and other signal lines, power supply cables, and hydraulic power transmission systems, etc., related links need to use reels to plan and manage these pipelines, for this reason, we have specially designed a series of reel products that can be used closely with it.