Corrosion-resistant bolt
The utility model discloses a corrosion-resistant bolt which comprises a bolt body, the bolt body comprises a bolt head and a screw rod, a groove body penetrating through the side edge of the bolt body is formed in one side of the bolt head and one side of the screw rod, and a zinc block detachably...
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Format: | Patent |
Sprache: | chi ; eng |
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Online-Zugang: | Volltext bestellen |
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