...y tannin from Gallnut extracts(由五倍子萃取液中的单宁酸制取鞣花酸的液相色谱分析)[J].Shandong Chemical Industry(山东化工),2004,33(2):29-30.
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Shandong Liaherd Chemical Industry Co 山东联合化工股份有限公司
Shandong Depu Chemical Industry Science 山东德普化工科技有限公司
Shandong Wonfull Petrochemical Co. Ltd. is a "Chinese chemical industry top 500" enterprises, is the local pillar enterprises.
山东汇丰石化有限公司是“中国化工行业500强”企业，是地方支柱型企业。
Shandong Province has plentiful chemical resources. Developing chemical industry is its unique superiority.
山东省化工资源十分丰富，大力发展化学工业为其突出优势。
Shandong Province has plentiful chemical resources. Developing chemical industry is its unique superiority. Rut developing chemical industry and environment protection is a pair of contradictions.
山东省化工资源十分丰富，大力发展化学工业为其突出优势。
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