DIN EN 681-1 Berichtigung 1:2021-06
Действует
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber; German version EN 681-1:1996 + A1:1998 + A2:2002 + AC:2002 + A3:2005; Corrigendum 1
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