CENTRIFUGAL IMPELLER AND MANUFACTURING METHOD OF CENTRIFUGAL IMPELLER
To efficiently and inexpensively manufacture a centrifugal impeller having a circular main plate, a cylindrical hub protruding from the circular main plate, and a torsion portion at the hub side, and also having a plurality of blade parts protruding from the circular main plate and the hub to one si...
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Format: | Patent |
Sprache: | eng ; jpn |
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