Elastomeric seals - material requirements for joint seals used in water and drainage applications - Part 3: cellular materials of vulcanized rubber.
弹性密封件。给水排水用管道连接密封件的材料要求。第3部分：硫化橡胶多孔材料。
Elastomeric seals - material requirements for joint seals used in water and drainage applications - Part 3: cellular materials of vulcanized rubber.
弹性密封件。给水排水用管道连接密封件的材料要求。第3部分：硫化橡胶多孔材料。
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