Henan's chemical products co., LTD
Telephone0371-60919097 15378766539
Websitehttp://www.psaichem.cn/
Henan Lien Chemical Products Co., Ltd.
Telephone03716091-9097 13383857418
Websitehttp://www.psaichem.com/
Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd
Telephone0431-80514535 19917294565
Websitehttp://www.chemextension.com
Merck KGaA
Telephone21-20338288
Websitehttp://www.sigmaaldrich.cn
