J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Shanghai Sinch Parmaceuticals Tech. Co. Ltd.
Telephone+86-21-54098501
Websitehttp://www.sinch.com.cn/
Shanghai Synthfine Chemical Co.,Ltd
Telephone 15921303235
Websitehttp://www.synthfine.com
Yantai Boyun Biological Technology Co. Ltd
Telephone13793517650 13793517650
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList248599/0_EN.htm
Yantai Zhengxin New Material Technology Co. LTD
Telephone13854547682 13854547682
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList1444924/0_EN.htm