在线免费观看国产精品,国内自拍区,久草免费资源视频,国产精品二区在线,最近中文字幕无吗高清免费视频,91孕妇精品一区二区三区,日韩在线观看精品

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.