J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Wuhan Chemwish Technology Co., Ltd
Telephone86-027-67849912
Websitehttp://www.chemwish.com
Aikon International Limited
Telephone025-66113011 18112977050
Websitehttp://www.aikonchem.com
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
Telephone +8613580539051
Websitehttp://www.yuhengpharm.com/
Block Chemical Technology (Shanghai) Co., LTD
Telephone021-20432219 13918097649
Websitehttps://www.acblock-lab.com