Zhengzhou Alfachem Co.,Ltd.
Telephone0371-53778726 18003825608
Websitehttp://show.guidechem.com/alfachem/
ChengDu SinoStandards Bio-Tech Co.,Ltd. ，
Telephone028-83243028 19136088901
Websitehttp://www.ebuylabs.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/
Shijiazhuang Yansheng Biotechnology Co., LTD
Telephone18332018567; 18332018567
Website
Shaanxi Dideu New Materials Co. Ltd
Telephone 18192503167
Website
