Rotating shaft lip-shaped sealing ring with elastic element and preparation method of rotating shaft lip-shaped sealing ring
The invention discloses a rotating shaft lip-shaped sealing ring with an elastic element and a preparation method of the rotating shaft lip-shaped sealing ring, and the preparation method comprises the following steps: step 1, carrying out pre-vulcanization treatment on the excircle of the elastic e...
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Format: | Patent |
Sprache: | chi ; eng |
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