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FILMS HAVING SELECTIVELY WEAKENED PORTIONS
FILMS HAVING SELECTIVELY WEAKENED PORTIONS
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机译:影片有部分选择的弱点
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摘要
A non-fibrous film has a non-weakened portion and a weakened portion having at least one mechanical property having a value that is lower than the value of the mechanical property of the non-weakened portion. The film has an optical characteristic including a clarity of at least 75 percent.
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