Nanjing Tong Rui Bio-Tech Co., Ltd. referred to as TRB, has been focusing on natural extracts more than 20 years, TRB is a technology-based company that combines R&D, production and international market sales. TRB products include the plant extracts, animal extracts, sweeteners, nootropics, fruit juice and vegetable powders, essential oils and nutrition supplements. TRB parizvino ine mafekitori maviri, imwe ndeye yakachena yakasikwa chirimwa fekitori fekitori, imwe inyuchi chigadzirwa fekitori, uye isu tine akateedzana ezvitupa senge ISO9001, ISO22000, HACCP, ORGANICAL, FDA, HALAL, KOSHER.