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关注:1
2013-05-23 12:21
求翻译:Pipes and flange connections must have a design that is impervious to liquids. Crimped pipes or similar constructions are not permitted.是什么意思?![]() ![]() Pipes and flange connections must have a design that is impervious to liquids. Crimped pipes or similar constructions are not permitted.
问题补充: |
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