... locates in south suburb industry park of Suizhou City, the land of ancient instrument series bell and hometown of special ... every month and our products have been sold all over the world, especially in Middle east countries, East Europe countries, ... Adaptor, Petroleum Manholes, Spill Containers,swivels, Couplings and Valves etc. Optic sensor(overfill detection system for tank truck,socket,probe)