Production, sale, installation and subsequent service of plastic, wooden, aluminium or combined of windows and doors finds application in all areas. Winter garden, renovation, glazed facades, fire protection, roof window, windows or skylights.

Production, sale: -wood briquettes: -non polluting/smokeless fuel -available for all types of solid fuel stoves and boilers, made of pure sawdust without use of any binding agent -fuel efficiency 18-20 MJ/kg, i.e. about 40% more than brown coal/lignite -burning time 180-240 minutes, minimum residual ashes (up to 1%) -complying with DIN ...