J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Shanghai zhigan biotechnology co., LTD
Telephone
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList31144/0.htm
Manhag Testing Technology Co., Ltd
Telephone020-020-3846236 17688849268
Websitehttp://www.bepurestandards.com/
Shanghai Jidu Biotechnology Co., Ltd.
Telephone 13851761812
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList285416/0.htm
Reer Technology (Shanghai) Co., LTD
Telephone021-64400900 15800436310
Websitehttp://www.reertech.com/
Taizhou Zhongzhi Biotechnology Co., Ltd
Telephone 13012344321
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