As a leading manufacturer of Silk Protein, Silk Amino Acids, Sericin, Silk Fibroin, Silk Peptide, Hydrolyzed Silk, Silkworm Pupa powder in China, Huzhou Aotesi Biotechnology Co.,Ltd has passed ISO9001 certification and won over the honor of high and new technique business enterprise in Zhejiang province with several national invention patents. Relying on the abundant silk resource of Huzhou and cooperating with Shanghai branch of Chinese Sciences Academy, Animal Graduate School of Zhejiang Univ...