J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
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Zhengzhou Guancheng Laboratory equipment Sales
Telephone0371-88888888 272369594
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Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Jiangsu aikang biomedical research and development co., LTD
Telephone025-66110311 13155353615
Websitehttp://www.aikonchem.com/
