Beijing xinyanhui pharmaceutical research and development co., LTD
Telephone 13969155946
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList710437/0_EN.htm
Block Chemical Technology (Shanghai) Co., Ltd.
Telephone021-20432219 13918097649
Websitehttp://www.acblock-lab.com
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Changzhou Exploring Chemical Co., Ltd
Telephone 15295164949
Websitehttp://www.tsourchem.com
Changzhou Tsour Chemical Co.,Ltd
Telephone +8615295164949
Websitehttps://www.tsourchem.com/index_en.html