A.R.S. customers are particularly deman ding as far as product quality and reliabi lity are concerned. For this reason A.R.S. has always paid great attention to quali ty, not only through the checks and tests described above, but also involving all the craftsmen and suppliers in a process of continuous improvement of perfor mance and business processes designed to ensure maximum customer satisfac- tion. This is proved by both the ISO 9001:2008 certification and the state ments of the customers.