killer007 发表于 2017-8-31 10:30:02

求标准BS EN 681-3

求标准BS EN 681-3 Elastomeric seals. Materials requirements for pipe joint seals used in water and drainage applications. Cellular materials of vulcanized rubber

谁有提供下。

shukesan 发表于 2017-8-31 10:30:03

BS EN 00681-1996 (2002) Elastomeric seals — Material requirements for pipe joi
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