DIN EN 1917 Berichtigung 2-2008 无钢筋和带钢筋的混凝土检修孔和检验井.技术勘误DIN EN 1917-2003
Concrete manholes and inspection chambers, unreinforced, steel fibre and reinforced; German version EN 1917:2002, Corrigendum to DIN EN 1917:2003-04; German version EN 1917:2002/AC:2008