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2023
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Invention
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Pocket flange forming device for duct.
Disclosure is a pocket flange forming device for a duct. ... |
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2020
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Invention
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Spiral elbow pipe curling device. A spiral elbow pipe curling device comprises: a base body; a sp... |
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2010
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Invention
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Apparatus for manufacturing a metal plate for a duct, including mesh-type beads. The present inve... |
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Invention
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Apparatus for manufacturing a spiral duct. The present invention relates to an apparatus for manu... |
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2008
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Invention
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Manufacturing apparatus and method of spiral duct including elbow. Provided is a manufacturing me... |
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Invention
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Joint jig of spiral duct manufacturing apparatus. Provided is a joint jig of a spiral duct manufa... |
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2007
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Invention
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Apparatus and method for manufacturing spiral duct. Provided are an apparatus and method for manu... |
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Invention
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Integrated spiral duct.
Provided is an integrated spiral duct including: a curved duct; and stra... |
