| 新 | 标 题 | 悬赏分 | 发贴人 | 回复/阅读 | 回复人 | 更新时间 |
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304不锈钢精铸件表面灰白处理的药剂及使用工艺 | 3 | 51painting | 10/967 | gyhb | 2006-12-02 10:34:35 |
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求助:石油醚性质 | 3 | 51painting | 8/4689 | oyk123 | 2006-06-21 09:11:00 |
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各种有机溶剂的闪点 | 3 | 51painting | 10/1752 | flychem | 2005-11-30 19:09:55 |
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90-120号石油醚的闪点等性质 | 3 | 51painting | 3/1795 | 51painting | 2005-10-26 10:23:12 |
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求助:碳氢溶剂的资料 | 3 | 51painting | 2/679 | 51painting | 2005-10-24 23:43:47 |
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求助:工业正己烷性质等 | 3 | 51painting | 5/3943 | 51painting | 2005-10-13 16:35:11 |