MARRETTI

Staircases of metal, parts of staircases, namely, stringers of metal; staircases of iron, of steel; handrails of metal, also covered with leather

Staircases of stone, staircases of marble; parts of staircases, namely, stringers of stone and of marble; handrails of stone and handrails of marble, also covered with leather

Staircases of wood, staircases of resin, staircases of plastic materials; parts of staircases, namely, stringers of wood, resin, plastic materials, also covered with leather