The stainless steel water storage tanks we construct have ranged from 1.0 m3 up to 500.0 m3. Their bottom is either conical and based on INOX legs or flat inclined and based on an inclined base. Their roof is closed conical. Their dimensions are chosen considering all customer ‘s needs. The material of these tanks is stainless steel AISI 316 with internal finish 2B, with certificates of chemical analysis from the steel mill. The weldings are done with the Argon – Tig method in a protective atmosphere of high-purity inert gas.