Optic sensor(overfill detection system for tank truck,socket,probe) Optic sensor(overfill detection system,tank truck parts,f Hubei Chusheng Special-purpose ... are: concrete mixer truck, fuel truck, chemical liquid truck, bulk cement truck, truck with crane ,high-altitude operation truck, road ... ,swivels, Couplings and Valves etc. Optic sensor(overfill detection system for tank truck,socket,probe)