Jangsu Pizhou Tianzheng Bioengineering Co. , Ltd.
Profile: Jangsu Pizhou Tianzheng Bioengineering Co., Ltd. manufactures and develops amino acid series products. We are accredited with ISO 9001:2000 quality certification. Our product catalogue includes l-tyrosine, l-cystine, l-leucine, l-cysteine hcl monohydrate and l-cysteine hcl anhydrous.