Manufacturing method of cylindrical member and manufacturing method of vibration damping rubber bushing having the cylindrical member
The invention provides a manufacturing method of cylindrical member, which can improve the design free degree of the projections dispsoed on the axial end face of the cylindrical member without influencing the rotation preventing function, can prevente rainwater or the like from flowing through the...
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Format: | Patent |
Sprache: | chi ; eng |
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