| 新 | 标 题 | 悬赏分 | 发贴人 | 回复/阅读 | 回复人 | 更新时间 |
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供应含量25%的硫代硫酸钠 | guozengfa | 0/247 | 2008-10-19 09:48:00 | ||
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真诚需求合作，有志之士。 | 3 | guozengfa | 2/620 | guozengfa | 2008-10-14 10:39:48 |
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寻求异丙醇生产厂 | guozengfa | 0/356 | 2008-09-18 19:11:14 | ||
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请教高手:二乙胺和乙醇的混合液怎样分离 | 3 | guozengfa | 4/1143 | guozengfa | 2008-09-18 18:47:24 |
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购买胶原纤维技术 | 3 | guozengfa | 0/511 | 2008-09-13 23:34:23 | |
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我有二乙胺和乙醇的混合液 | 3 | guozengfa | 6/814 | zhushitou | 2008-09-11 09:59:34 |
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DM促进剂的问题 | 3 | guozengfa | 0/507 | 2008-09-06 10:01:24 | |
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请问吡啶和氯气的反应 | 3 | guozengfa | 4/558 | guozengfa | 2008-07-23 11:46:06 |
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请问那里有生产木糖醇的呀？ | guozengfa | 3/605 | zhenghe88 | 2008-04-29 09:58:41 | |
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醋酸和锌粉的产物怎么处理 | 3 | guozengfa | 7/947 | wuhuayong | 2008-04-27 21:28:13 |
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三苯基氧膦 | 3 | guozengfa | 1/575 | tangyyer | 2008-04-21 17:02:56 |
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沥青是怎么划分的呀？老师告诉我！谢谢 | 3 | guozengfa | 5/1546 | guozengfa | 2008-01-18 17:44:28 |
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我的醋酸锌该怎么处理 | guozengfa | 2/487 | ahwb | 2008-01-02 13:25:17 | |
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我有含量为80%的正丁胺废水。需要请联系我13832180947 | guozengfa | 0/454 | 2007-12-09 21:42:15 | ||
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请问硫氢化钠的用途 | 3 | guozengfa | 3/1773 | guozengfa | 2007-11-25 19:51:49 |
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请问哪位大师知道【氰氢酸】是什么东东？ | guozengfa | 4/1373 | jilar2008 | 2007-11-18 20:33:11 | |
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谁知道维生素C废水的用途 | guozengfa | 3/777 | shtbbca | 2007-11-13 09:10:01 | |
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供应吡啶废液 | guozengfa | 0/276 | 2007-09-18 22:28:27 | ||
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供应吡啶废液 | guozengfa | 0/319 | 2007-09-18 22:28:19 | ||
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请问什么样的东西可以在铁水中融化并发粘？ | 3 | guozengfa | 2/748 | guozengfa | 2007-09-18 22:24:25 |