Wenzhou Ouhai Fine Chemicals Corporation is a share held company and was founded in 1983. We have more than 20 years experience in manufacturing Tannic Acid,Gallic Acid,Pyrogallic Acid,Methyl Gallate,Ethyl Gallate,Propyl Gallate and the series of products. We manufacture the goods with GMP facilities and the Goods meet the requirement of BP93,FCC IV,and other international standard. The goods have been exported to Japan,the USA,Italy,Spain,Britain and Germany.And we warmly welcome frie...