Contract Notice – General Guidelines, Standard Regulations Open Procedure (Construction Work) Groß-Gerau District, New Worfelden Primary School Building (3 Classes) Delivery And Assembly Of The Central Devices, Air Ducts, Air Inlets And Outlets, Air Duct Installations, Thermal Insulation Work And Fire Protection For A 3-Class, Two-Story Primary School, Consisting Of 5 Rooms. More