Production, assembly and distribution of SPACA-System window and door seals, SPACA-System FenoStar DV-IV-insulation systems, SPACA-System staircase renovations with laminate, parquet and cast marble, Rufalex roller shutter systems, EB aluminum window shutters, Coloroc ventilated colored stone facades, RAURIZER natural stone facades, KOPP cast marble window and door frames, Maco energy-saving roofs, general carpentry and assembly work; can also conduct all business that is directly or indirectly related to the company's purpose; can further acquire, encumber, sell and manage real estate.