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Flexible nonwoven fabric and laminate thereof
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Process for preparing polyethylene terephthalate
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Unsaturated copolymer based on olefin and production and use
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Supporting structure of piezoelectric vibrator parts and piezoelectric vibrator, and the method of packaging of piezoelectric vibrator
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Ethylene copolymer rubber, vulcanizable rubber composition containing the copolymer rubber, and process for preparing the same
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Process for removal of diol as impurity in cyclic carbonic acid ester
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Nonwoven fabrics used as filter with polarization
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A piezoelectric transformer having a high boost ratio
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Unsaturated copolymer of ethylene and process for preparing the same
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A method of manufacturing polyesters
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A process for preparing an electret filter having high trapping capability
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