After building a factory in Bulgaria and filial company Stilmet, the Greek company ETEM penetrated the Bulgarian company as one of the leaders, continuously improving its systems and developing new. Besides systems for doors and windows, the constructors of the company developed profiles for suspended facades, sunlight protectors and different kinds of non-standard profiles. The profiles with interrupted thermal bridge which the company consecutively develops during the years are: E24, E40 and the sliding E3000.