Dk 021:2015: 44130000-0 Sewage Systems. (Pnd Ball Valve; Ks-10.9 Sewer Ring; Pp-10 Floor Slab; Pp-10.15 Floor Slab; Garden Hatch (Black); High Garden Hatch 4.5T; Pe Pipe F25X2.3Mm; Ks-10.6 Sewer Ring - Contract No. 18-26 From 03/26/2026)