J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemvon Biotechnology Co., Ltd
Telephone021-50790412
Websitehttp://www.chemvon.com
Chemsky (shanghai) International Co.,Ltd
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Shanxi Xuanran Import and Export Trade Co., Ltd.
Telephone +8617735180244
Websitehttps://www.xuanranglobal.com/