Xi 'an langene biological technology co., LTD is registered in xi 'an high-tech industrial development zone students pioneer park of high-tech enterprises. Company is mainly engaged in high purity bioactive peptides scale synthesis, modification and preparation of peptide apis and peptide cosmetics, solid-phase synthesis resin, intermediate products such as production, provide peptide (peptide medicinal materials) custom synthesis and drug approval services. The company is committed to peptide synthesis and preparation technology and so on series product...