| 摘要 |
A container screw-closure cap 1a made of plastic, having a plural sealing system (7a), (8), (9a) for sealing a mouth of a container and having a fixing system (10), (11a), (12) for fixing said cap at an overhang of said container mouth (2), characterized by a plurality of crescent-shaped cams (11a) and one or more intermediate stretch windows (10) both comprised in said fixing system. <IMAGE>
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