J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Yichang Zhongyitai Trading Co., Ltd.
Telephone0717-6449896 13886658719
Websitehttp://www.zhongyitai.com/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
CHG Opto-Electronic Corporation Limited
Telephone 2537653158 16621191650
Websitehttps://www.uncinfo.cn
SHANGHAI ZZBIO CO., LTD.
Telephone15102117276 19921389125
Websitehttps://www.zzsrm.cn/
