SHENZHEN DUOXI TECH CO.,LTD Is a professional R & D, production, sales and more se ecological organic products company, initiated the "healthy source in nature", " science of selenium, selenium supplement to life and health security, the benefit of the public " concept, is committed to the integration of multiple selenium selenium resources, technology development and utilization. Multiple selenium organic products, pure natural extract can effectively improve the nutrition and health level, is DUOXI international top plant medicine and food of China representative office.