DESIGN AND MANUFACTURE OF STAINLESS STEEL DRAINAGE SYSTEMS AND MANHOLE COVERS USED BY PEDESTRIANS AND VEHICLES IN CIVIL AND INDUSTRIAL TRAFFIC AREAS. DESIGN AND MANUFACTURE OF STAINLESS STEEL FINISHING AND DECORATIVE ACCESSORIES FOR BUILDING WORKS IN CIVIL AND INDUSTRIAL AREAS.

The discovery of stainless steel is due to the British Woods and Clark who, in 1872, patented an iron alloy containing 35% by weight of chromium and resistant to acids. Industrialization, however, took place only years later when in 1913 Harry Brearley (pictured), experimenting with steels for firearms, discovered that one of his steel specimen with 13-14% of chromium and with a carbon content relatively high (0.25%) did not rust when exposed to the atmosphere. The first mention of this technological progress dates back to 1915 and is found in an article in the New York Times about the use of this class of steel for cutlery, praising its resistance to corrosion even in contact with the organic acids contained in foods. The subsequent progress of metallurgy between the forties and sixties of the 20th century increased stainless steels development and their applications but it was only at the beginning of 2000, initially in Europe, that their hygienic and anti-bacterial properties were discovered and stainless steel was first used where hygienic performance is essentials, such as in floor drainage. Stainless steel drainage systems find nowadays their application in many sectors, especially in the food industry (professional kitchens, slaughterhouses, dairies, wineries, breweries, mineral water plants, bakeries, ice cream parlors), pharmaceutical industry but also for civil use, thanks the resistance, durability and aesthetic finish of this material. Steel drainage systems respond efficiently and effectively to current international health and safety regulations.