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关注:1
2013-05-23 12:21
求翻译:All WATER SUPPLY pipes must be water piping that is designed and intended for use in plumbing and potable water supply systems是什么意思?![]() ![]() All WATER SUPPLY pipes must be water piping that is designed and intended for use in plumbing and potable water supply systems
问题补充: |
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