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Qingdao Hanfeng Biotechnology Co., Ltd. ,located in Qingdao ,China . we are a marine technology-oriented business entity that specializes in the comprehensive and deep processing of seaweeds factory ,with 10 years experiences .Our main products include sodium alginate, seaweed powder, fertilizer and algae feed, with an annual output of 3000 tons. Presently our products have been widely used in such fields as dyeing, textile, environmental protection, aquaculture, animal feed and food. competitive technical background and technical partnership with many a research institute and institution of higher learning enable us to have stable product quality. Thanks to our full-fledged marketing and service system, now our products have been exported to countries and regions of Europe, North America and Southeast Asia, etc., thus allowing us to maintain a long-term cooperation with numerous businesses all over the world.