斗转星移合成怎么进不去,a级片电影免费在线视频,九九热这里只有精品6,免费吃奶摸下激烈视频网址,国产麻豆a一级毛片爽爽影院,波霸女的淫欲生活,孽乱呻吟声老妇

  Chengdu alenpharma technology co.,ltd
   About us
       About us
       Products
       Buy
       Sell
       Contact us
       Chinese

Alen specializes in pharmaceutical bulk drugs, pharmaceutical intermediates, drugs and other research, production and manufacturing process development and optimize technology services, fine chemical production and sales business. The company has hundreds of products, which cover areas: chiral compounds (non-natural, 偽 or 尾, protection or conservation of amino acids; chiral alcohols, acids, amines, etc.); heterocyclic series (pyridine, Piperidine derivatives; pyrazine, piperazine derivatives; Pyrrole, pyrrolidine derivatives; indole derivatives; quinoline, isoquinoline derivatives; indigo red, indigo red acid anhydride derivatives; pyrimidine derivatives; heterocyclic Butane derivatives; thiophene, thiazole derivatives); boric acid and phenylboronic acid series; benzene acetylene series; biphenyl series.

Shanghai Danfan Network Science&Technology Co., Ltd. All Rights Reserved.