Iron, unwrought or semi-wrought; steel, unwrought or semi-wrought; steel pipes and tubes; steel plates and sheets; construction materials, namely, metal piles; branching pipes of metal; reinforcing materials of metal for buildings; framework of metal for building; metal pipe couplings and joints

Building construction; factory construction; harbour construction; road construction; pier construction; marine construction; underwater construction; construction consultancy; providing construction information; construction of civil engineering structures