Repair and reinforcement of buildings and other structures being bridges, dams, underground culverts, tunnels, coastal conservation facilities, and water treatment facilities; concrete repair and anticorrosion works in the nature of repairing concrete cracks by injecting repair materials and concrete modifier; advisory services relating to repair and reinforcement of buildings and other structures being bridges, dams, underground culverts, tunnels, coastal conservation facilities, and water treatment facilities; advisory services relating to concrete repair and anticorrosion works; repair or maintenance of construction machines and apparatus for repair and reinforcement of buildings and other structures being bridges, dams, underground culverts, tunnels, coastal conservation facilities, and water treatment facilities; repair or maintenance of construction machines and apparatus for concrete repair and anticorrosion works

Research and diagnosis of degree of deterioration, durability, and earthquake resistance of buildings and civil engineering structures; testing, analyzing and evaluating the deterioration of structural properties of concrete structures and reinforced concrete; design of factory buildings and civil engineering structure; surveying of buildings and civil engineering structure; design of construction machines and apparatus for repair and reinforcement of buildings, other structures, building parts and equipment composed of these machines and apparatus; design of construction machines and apparatus for concrete repair and anticorrosion works, parts and equipment composed of these machines and apparatus; research on building construction; testing or research on civil engineering; testing or research in the field of engineering construction machines and apparatus for repair and reinforcement of buildings and other structures; testing or research in the field of engineering on construction machines and apparatus for concrete repair and anticorrosion works