J & K SCIENTIFIC LTD.
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Chemsky(shanghai)International Co.,Ltd.
Telephone021-50135380
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Shanghai TaoSu Biochemical Technology Co., Ltd.
Telephone021-33632979
Websitehttp://www.tsbiochem.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Telephone 4008-099-669
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