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Akzo Nobl BASF Cognis Emerald Kalama Evonik ϴӼԭ ũҩ Ϸɢ ҽҩм

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Ϻ̩ó޹˾ Ȩ(C)2011
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11ѡ5 ϰ浥齫 11ѡ5ͼ ٶ ֱͶʹ߰Щ Ʊ̷* վҪǮ? 31ѡ7 ɹſ3ͼ ½25ѡ7ͳ ò1Ͷע 5Ʊнѯ 齫µ ɽƽ̨ ΢ֹ齫 ɽʮһѡ忪 11ѡ5©top10 2?