Chen Rongqi is senior consultant of delegation of China Dyestuff Technical Experts and Shanghai Dope Dyestuff Trade Association.
本文作者是中国染料工业专家顾问团和上海涂料染料行业协会高级顾问。
Chen Rongqi is senior consultant of delegation of China Dyestuff Technical Experts and Shanghai Dope Dyestuff Trade Association.
本文作者是中国染料工业专家顾问团和上海涂料染料行业协会高级顾问。
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