22 صفحه pdf
ISO 4427-1:2007
Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply
Part 1: General
ISO 4427-1:2007-Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply
22 صفحه pdf
ISO 4427-1:2007
Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply
Part 1: General
BS EN 10224:2002: Non-alloy steel tubes and fittings for the conveyance of water and other aqueous liquids — Technical delivery conditions