Unclassified
Pipe (fluid conveyance)
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Unclassified
Pipe (fluid conveyance)
Tubular section or hollow cylinder
epic · Q41551
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Artifacts
Baoding balls
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Unclassified
Nail (fastener)
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Works
Chain
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Meta topics
Bolt (fastener)
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Unclassified
Fortochka
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Places
Dam
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Places
Qanat
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Places
Glen Canyon Dam
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Places
Mullaperiyar Dam
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Places
Koshi Barrage
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Places
Idukki Dam
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