Iron stair with open riser.
Double load-bearing running structure outside steps made of steel.
Structure painted with embossed glaze , metallic black finish.
Tread with mm-47. thickness and porcelain stoneware cladding with 3- mm. thickness, 21-ASH finish.
Tread fixed to the structures with soldered steel wings and recessed teeth with no visible screws.
AIR7C INOX rail: 6 stainless steel rails, stainless steel handrail, spindles with painted steel double plate (on request).