A leading manufacturer of research chemicals, metals and materials including high purity inorganics, organics and organometallics, precious compounds and catalysts, rare earth compounds and metals, labware and more.
URL: http://www.alfa.com/alf/laboratory_chemical_suppliers.htm in English [Translate]
The company specialize in the manufacture of various amino acids and nutritional supplements,including L-Arginine,L-Glutamine,L-Norvaline and the pharmaceutical ingredients such as N-Acetyl-L-Cysteine, CBZ-L-Valine and etc.
URL: http://www.jeing-yuan.com in English [Translate]
