One-way piston sealing ring for large-diameter or heavy-load oil cylinder
The utility model provides a one-way piston sealing ring for a large-diameter or heavy-load oil cylinder, and relates to the technical field of piston sealing. The one-way piston sealing ring for thelarge-diameter or heavy-load oil cylinder comprises an abrasion-resistant ring connected with the inn...
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Format: | Patent |
Sprache: | chi ; eng |
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