Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
Telephone025-66028182 17714375163
Websitehttp://www.aikonchem.com
Changzhou Kechem Bio-Scientific Co., LTD.
Telephone0519-68985668 13685222090
Websitehttp://www.kechem.cn/
Henan Alpha Chemical Co., Ltd.
Telephone0371-55013243 15324716602
Websitehttps://www.chemicalbook.com/supplier/24684125/
Shanghai alkynechem Co., Ltd.
Telephone086-021-15821262312 15821262312
Websitehttp://www.alkynechem.com
SHANGHAI YOUNG-CHEM CHEMICAL CO., LTD.
Telephone 13817489192
Websitehttp://www.ychemchemical.com/