STEMA GMBH FENSTERSYSTEME is a provider of products and services such as bungalows, plastic, prefabricated,chalets, polyester laminate, prefabricated,conservatories, unplasticised polyvinyl chloride (pvc/u), prefabricated,porches and verandas, plastic, prefabricated,garages, plastic, prefabricated,shelters, plastic, prefabricated, for equipment,windows,pvc windows.