| 摘要 |
FIELD: mechanical engineering; storage of carbonated drinks. SUBSTANCE: cap is designed for sealing vessel holes. cap is provided with ring ridge on back side in upper part. Ring ridge is made also on upper surface of sealing boss. Ring ridges come into engagement when cap is fitted on neck. EFFECT: improved reliability of sealing of vessels containing carbonated drinks and other vessels requiring hermetic sealing. 12 cl, 11 dwg
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