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“助留专家网”(www.retention.hk)是中国首个造纸助留剂专业网站。目前,受全球金融危机影响,中国造纸工业处于非常困难的时期,无论
“Retention Experts Network” (www.retention.hk) is China’s first paper retention aid professional website. At present, affected by the global financial crisis, China’s paper industry is in a very difficult period, no matter