A.D. Tubi Inossidabili SpA, an Italy-based manufacturer of welded tubes made of stainless steel, duplex, superduplex, nickel alloys and titanium, has expanded its production range to include diameters from 7,14mm to 63,5mm and WT from 0,40mm to 3,05mm. Manufacturing is located in Italy, and starting from 2008 a sales office in Chicago has been established to specifically develop the North America market. The company is highly specialised in the production of tubes for heat transfer applications, where the power generation industry represents the core business: Condensers, Feedwater Heaters (U-Bent Low-stress tubing), Heat Exchangers. The leading principle of A.D. Tubi is the safeguard of a high-demanding quality production, and to this end the company has introduced a fully controlled working process that requires the respect of very strict parameters. Loyal to this requirement, A.D. Tubi Inossidabili SpA own the ISO 9001:2000 and AD 2000 W0 certifications, besides other product approvals.