Fastening device for single-side small-angle flange connection and fastening method
The invention discloses a fastening device for single-side small-angle flange connection and a fastening method. The fastening device comprises a bolt matched with a screw hole in a small-angle flange; and the fastening device furthermore comprises a screw head installed on the head of the bolt and...
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Format: | Patent |
Sprache: | chi ; eng |
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