N S F R

Steel plates; steel sheets; steel in the form of strips; building floor boards of metal; building ceiling boards of metal; reinforcing materials of metal for building; metal materials used for building, namely, angle irons, H-steel, bolts of metal, building panels of metal, ceilings of metal, floors of metal, framework of metal for building, joists of metal, building linings of metal, pillars of metal for buildings, pipes of metal, posts of metal, props of metal, refractory construction materials of metal