Leader in power and distribution transformers, the brand Stem trafo stands for trustworthiness and reliability, thanks to the great experience in designing and  construction and to a rigorous quality control in the choice of components and suppliers. With the constant updating of technologies it ensures a market  dynamism which consent the brand to meet even the most particular customer needs. www.stemtrafo.com Controls to your factory Instrumental analysis In plant intervention Mineral oil analysis Special and custom products Our strenght