Tongzhou Rongtai Aminoacid Co.,Ltd.
Business - Chemicals - Biochemical - Amino Acids. Produces isomers of tryptophan, 5-hydroxy-tryptophan and L-threonine in Yubei, China. ...
www.cn-aminoacid.com
Jinzhou Jirong Amino Acid Co., Ltd
Business - Chemicals - Biochemical - Amino Acids. Company profile and product list; glycine, proline, hydoxyproline and isomers such as tryptophan, leucine and lysine at Jinzhou, China. ...
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