The main areas of operation include shut-downs, gates, steel dams, conveyances, environmental protection kits, valves, barbers, decontamination machines, rubber water stoppers, pumps, production, sale and installation; smart integrated valves, automated monitoring and control devices, cranes, doors, stainless steel gates, hydraulic dams, pedestals, gas shield dams, sub-flow dams, tablets; hydro-hydroelectric engineering, preservation works; hydro-metal construction and installation, preservation and repair; hydraulic kits, etc。