| 摘要 |
A stopper ( 1 ) for bottles for wine and similar drinks comprising an outer coating ( 2 ) and an inner element ( 3 ) is described, and in which the outer coating ( 2 ) consists of a first thermoplastic polymeric material ( 2 a) which entirely covers the inner element ( 3 ), while the inner element ( 3 ) is made of a second foamed semi-crystalline polymeric material ( 3 a), the synthetic stopper ( 1 ) being produced by coinjection moulding process.
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