... detection system for tank truck,socket,probe) Optic sensor(overfill detection system,tank truck parts,f Hubei Chusheng ... bitumen tanker,LPG tank,,water truck,sprayer,sprinkler,watering cart,street sprinkler,, dirt-wagon,refuse wagon,dustcart,dump cart,rubbish ... Petroleum Manholes, Spill Containers,swivels, Couplings and Valves etc. Optic sensor(overfill detection system for tank truck,socket,probe)