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Xian Saiyang Bio-technology Co.,Ltd Xian Saiyang Bio-technology Co.,Website:http://www.syextract.com,Ltd is located in Xian High-Tech Development Zone. Xian Saiyang Bio-technology Co.,Ltd is a high-tech enterprise which engaged in developing and processing natural plant extract and Chinese herbals,as well as manufacturing and marketing. We have developed many different Herb Extracts and monomers. With a strong working team and serious qulity control.Our main product are BlackRiceExtract