Raw Materials, Pharmaceutical Intermediates, Pharmaceutical Ingredients manufacturer / supplier in China, offering China Supply Emulsifier Sorbitan Monooleate Span 20 60 80 Sorbitan Span Series, China Supply Material 6645-46-1 L-Carnitine Hydrochloride Powder L Carnitine HCl, Amino Acid Material 72-18-4 Powder L-Valine and so on.