免费看黄a,欧美影视一区二区,国产天堂久久,色婷婷久久一区二区,精品在免费线,午夜三级网站,欧美一区二区三区四区在线观看

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.