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Changsha Zheng Li Biological Technology Co., Ltd. is a company specializing in the production of various humic acid products. It has 3 humic acid production plants with an annual output of more than 100,000 tons of humic acid. Its products are widely used in livestock and poultry feed, animal feed additives, aquatic feed and water quality protection, organic fertilizer, soil improvement, industrial ceramics, biomedicine and other industries.
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