Movable arm rubber diaphragm
The utility model discloses a movable arm rubber diaphragm, including: bottom plate, locating piece and main part, the surface of bottom plate is equidistantly provided with locating piece, the bottom end of locating piece is fixedly equipped with main part, the main part is equipped with shell, cav...
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Format: | Patent |
Sprache: | chi ; eng |
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