I have successfully developed two kinds of granular activated carbon, one medicine intermediate, one emulsify agent for cleaning printing ink.
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美
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有著(zhù)豐富的產(chǎn)品開(kāi)發(fā)經(jīng)驗,現已成功開(kāi)發(fā)出顆?;钚蕴?jì)蓚€(gè)品種,醫藥中間體一個(gè),乳化清洗劑一個(gè)。
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国内精品美女A∨在线播放xuan