J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Zhengzhou kangnuochenrui Chemical Technology Co.,Ltd
Telephone 18210788515
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList17156/0.htm
Changzhou Hopschain Chemical Co.,Ltd.
Telephone0519-85528066 13775048983
Websitehttp://www.hopschem.com/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Zhuhai Aobokai Biomedical Technology Co., Ltd.
Telephone400-0628126 15697568805;
Websitehttp://www.aobchem.com.cn/
