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2Â¥2009-04-14 23:27:37
vagrantjasmine
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At room temperature, PBT is resistant to weak acids, weak bases, water, and aqueous solutions of neutral and acid salts. PBT is non-resistant to strong acids, oxidizing acids, strong bases, ketones and phenols. Above 6O, PBT becomes increasingly sensitive to univalent alcohols,aromatic substances, and ketones. ÁíÍ⣬Äã¿ÉÒÔ½èÓó£ÈܽâPETµÄÈܼÁ£º±½·ÓÓëËÄÂÈÒÒÍéµÄ»ìºÏÎÖÊÁ¿±È3£º2»ò1£º1£© |
3Â¥2009-04-15 08:44:59
wujianTFRC
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4Â¥2009-04-15 09:27:11
zhongguoabc
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5Â¥2009-04-15 12:45:55
zhengtihe102
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- ÐÔ±ð: GG
- רҵ: ËÜÁÏ

6Â¥2009-04-16 13:48:56
wujianTFRC
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- Ìû×Ó: 213
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7Â¥2009-04-16 13:49:44
zouhbb2000
½ð³æ (СÓÐÃûÆø)
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8Â¥2009-04-18 21:20:17














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