The best concept and engineering of a product can be flawed by a production
poorly attentive to the quality.
One of the main STSR objectives has always been to provide high quality
products, meeting the mandatory requirements.
This result is achieved by monitoring all stages of production: for example,
molding of all plastic parts takes place inside our plants.
However, it is necessary to apply a systematic and careful control of components
and, in assembly phase, to employ trained staff and automated equipment
Final testing, carried out on 100% of the products, is run through air equipment
with electronic control concerning head valves and cartridges, or through water
equipment with computer control concerning the thermostatic cartridges.