Pharmaceutical Chemicals, Pharmaceutical Raw Materials, Syringe manufacturer / supplier in China, offering Factory Direct Feed Grade Amino Acid Seleno-Dl-Methionine CAS 1464-42-2, Manufacturer Supply Amino Acid 98.5% Feed Grade L-Threonine CAS 72-19-5, Feed Grade Corn COB 60 70% 99% Choline Chloride Factory Direct and so on.