Hangzhou Hengrui Biological Products Co.,Ltd. | Address: Xiangnan Village, Yiqiao Town, Xiaoshan District, Hangzhou, Zhejiang 311256, China 
Send Inquiry | Phone: +86-(571)-82338556
Hangzhou Hengrui Biological Products Co.,Ltd. is a manufacturer of tryptophan. Tryptophan is a kind of heterocyclic amino acid necessary to human body, which is widely used in pharmaceutical and food more...