Single-tube-plate double-sealing structure
The utility model discloses a single-tube-plate double-sealing structure which comprises a single-tube-plate main body, a first tube opening is formed in the top end of the single-tube-plate main body, a second tube opening is formed in the bottom end of the single-tube-plate main body, a sealing in...
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Format: | Patent |
Sprache: | chi ; eng |
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