BS EN 1123-1-1999 Pipes and fittings of longitudinally welded hot-dip galvanized steel pipes with sp

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标准类别：国外标准

关键词： BS EN 1123 1999 Pipes

标准简介

BS EN 1123-1-1999 Pipes and fittings of longitudinally welded hot-dip galvanized steel pipes with spigot and socket for waste water systems-Part 1 Requirements, testing, quality control