We DAXINGANLING ZHONGBEI NORTHLAND BIO-CHEM INDUSTRY CO.,LTD mainly supply 3,4-divanillyltetrahydrofuran 95% (nettle root extract) 6, 7-dihydroxy-bergamottin (DHB) Tongkat Ali Extract Maca Extract¡¡ Turkesterone Coleus forskohlii Extract Banaba Leaf Extract Fucoxanthin GMP standard workshops for natural pigment, traditional drug extracts, chemical-synthetic