Hebei Yanxi Chemical Co., Ltd.
Telephone+86-17531190177; +8617531190177
Websitehttps://www.chemicalbook.com/manufacturer/hebei-yanxi-chemical-283/
ChemeGen(Shanghai) Biotechnology Co.,Ltd.
Telephone 18818260767
Websitehttp://www.chemegen.com
Jiangsu Qianyu Molecular Technology Co., Ltd
Telephone 18552882512
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList524172/0.htm
LEAPCHEM CO., LTD.
Telephone+86-852-30606658
Websitehttp://www.leapchem.com
GIHI CHEMICALS CO.,LIMITED
Telephone +8618058761490
Websitehttps://www.gihichemicals.com/