To confine and accelerate particles to very high energy, in synchrotrons, FEL or colliders, the vacuum envelope has to be shaped to perfection. High quality construction materials (e.g. aluminum and aluminum alloys, stainless steel, titanium, ceramic, metal/ceramic joint etc. ) have to be used. Precise machining, high tolerances, surface finishing, handling, cleaning and assembling technologies are required. Clean environment where to assemble, test and apply metrological check are also necessary. SAES RIAL can provide chambers made of different materials, degree of surface finishing, cleaned to UHV standards and suitably vacuum conditioned. SAES RIAL Vacuum Technical Department can also provide support to the customer during the chamber design activity, suggesting technical solution or carrying out modeling activities to improve the product design.