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大连商品交易所投资者教育资料 - nanhua.net · 据中国海关数据,2013年我国玉米淀粉出口量约9.7万吨,进口量约0.15万 吨。玉米淀粉产业集中度较高,前10大企业(集团)产量占比达到59%。玉
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