Shanghai JONLN Reagent Co., Ltd.
Telephone400-0066400 13621662912
Websitehttp://www.jonln.com
Guangdong wengjiang Chemical Reagent Co., Ltd.
Telephone0751-2815688 13927872512
Websitehttp://www.wj-chem.com
AFINE CHEMICALS LIMITED
Telephone0571-85134551
Websitehttp://www.afinechem.com/index.html