Hydro engineering
- Earth work,excavations and embankments
- Preservation of excavations
- Forming and thickening of embankments
- Building constructions (weirs,culverts,steps)
- Regulating building constructions
- Work on concrete
- Tight walls
- Concrete reinforcements
- Stone reinforcements
- Net-stone reinforcements
- Biological reinforcements
- Land water improvement:
-- maintenance of ditches and land improving devices
-- regulation of rivers and streams
-- modernization of embankments
-- repair work of anti-flood intermediate pumping stations
- Preservation of excavations
- Forming and thickening of embankments
- Building constructions (weirs,culverts,steps)
- Regulating building constructions
- Work on concrete
- Tight walls
- Concrete reinforcements
- Stone reinforcements
- Net-stone reinforcements
- Biological reinforcements
- Land water improvement:
-- maintenance of ditches and land improving devices
-- regulation of rivers and streams
-- modernization of embankments
-- repair work of anti-flood intermediate pumping stations