... ,high-altitude operation truck, road wrecker, sanitary garbage truck, water truck, sewage suction truck, fecal suction truck, various semi-trailers ... like technology, creative and quality understanding at a higher level. Our production capacity is about 1,500 units to ... Manholes, Spill Containers,swivels, Couplings and Valves etc. Optic sensor(overfill detection system for tank truck,socket,probe)