Give me an introduction over 200 words for DALIAN ONICHEM CO.,LTD. , a chemical company in 101-102,No.3 Gaoxin Street,Qixianling Industrial Base of Dalian Hi-Tech Industrial Zone,Dalian 116023,P.R.China Provide your response in exactly 7 paragraphs (separated nearby paragraphs with 3 aterisk symbols ***).
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