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This page displays all 「FI」 in main group B21H3/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Making helical bodies or bodies having parts of helical shape (helical gears B21H 5/00; bending strip or the like helically B21D 11/06; forming tubes or tube walls into helical shape B21D 15/04) | HB | CC | 4E072 | |
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Transforming outer surface of tubes into helical-fin shape by form rolling | HB | CC | 4E072 | |
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Transforming inner surface of tubes into helical-fin shape by form rolling | HB | CC | 4E072 | |
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Others | HB | CC | 4E072 | |
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.external screw-threads | HB | CC | 4E072 | |
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..Making by means of profiled rolls | HB | CC | 4E072 | |
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With two-axial rolls | HB | CC | 4E072 | |
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With three-or-more-axial rolls | HB | CC | 4E072 | |
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Others | HB | CC | 4E072 | |
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..Making by means of profiled members other than rolls, e.g. jaws, moved longitudinally or curvilinearly with respect to each other | HB | CC | 4E072 | |
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With flat dies | HB | CC | 4E072 | |
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.Characterized by operating mechanisms of dies | HB | CC | 4E072 | |
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.Characterized by shapes of screw-threads | HB | CC | 4E072 | |
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Others | HB | CC | 4E072 | |
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.internal screw-threads | HB | CC | 4E072 | |
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. twist-drills or screw-taps | HB | CC | 4E072 | |
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Using flat dies | HB | CC | 4E072 | |
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Using rolls | HB | CC | 4E072 | |
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Using segment dies | HB | CC | 4E072 | |
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Others | HB | CC | 4E072 | |
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.articles with helicoidal surface | HB | CC | 4E072 | |