What are the good brands of domestic pipeline inspection equipment?

Take Zhong Yi pipeline inspection robot as an example, it consists of four parts: crawler, lens, cable tray and control system. After being connected with the control system through the cable reel, it responds to the operation commands of the control system, such as: the track moves forward, backward, turns, stops and adjusts the speed; Lens frame lifting, lighting adjustment; The lens rotates horizontally or vertically, focusing, zooming, switching back and forth, etc. In the detection process, the control system can display and record the pictures returned by the lens and the state information of the crawler in real time, and can input comments through the touch screen.