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Home › Global Industry Standards › GB/T 4754—2017 › G · 交通运输、仓储和邮政业 › 57 · 管道运输业 › 571 · 海底管道运输
GB/T 4754—2017 CN Group
571

海底管道运输

1
Class
Direct Subordinate Classifications · 1 Items
5710
海底管道运输
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Peer Categories
571 海底管道运输 572 陆地管道运输
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