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DIN EN 681-4Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 4: Cast polyurethane sealing elements; German version EN 681-4:2000 + A1:2002 + A2:2005 Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 4: Cast polyurethane sealing elements; German version EN 681-4:2000 + A1:2002 + A2:2005 |
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