欧美激情久久久,婷婷色国产偷v国产偷v小说,毛片基地在线播放,国产精品77,a天堂视频,成人欧美一区二区三区在线播放,青草av.久久免费一区

R & D/ expertise

1. The team has chemical engineers who have worked in the Institute of Chemistry

    and pharmaceutical enterprises for many years.

2. Rich experience in heterocyclic synthesis, boric acid and process development.

3. The management team has more than 40 patents and 80 publications.