J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Beijing Minruida Technology Co., Ltd.
Telephone010-82387566 18001021521;
Websitehttp://www.mreda.com.cn/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684
Websitehttps://www.rrkchem.com
NewCan Biotech Limited
Telephone+86-0571-86912261 +8613735419629
Websitehttps://www.newcanbio.com/
