Contract Notice – General Guidelines, Standard Regulations Open Procedure (Construction Work) Kiz56, New Building, Ventilation Ventilation Kiz56, New Building, Ventilation Type And Scope Of Services: Approx. 270 M² Of Galvanized Sheet Metal For Ventilation Ducts Approx. 400 M Of Spiral-Seam Pipe 1 Central Rlt Device 5 St. Brands... More