Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 1: General; German version prEN 12201-1:2010
Plastics piping systems for renovation of underground water supply networks - Part 3: Lining with close-fit pipes; German version EN 14409-3:2004— 30 стр.
Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 1: General; German version EN 12201-1:2011— 20 стр.
