Reservoirs for spent nuclear fuel or high-level radioactive waste, not of metal or plastics; blocks of concrete; concrete beams; concrete walls for building; firebricks.

Construction services; Installation and repair services; machinery installation, maintenance and repair; construction, inspection, repair, maintenance and operation management of incinerators and consulting and information services thereof; construction, inspection, repair, maintenance and operation management of waste treatment facilities and consulting and information services thereof; construction, inspection, repair, maintenance and operation management of gas generating plants and consul...