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Qingdao Haidelong Biotechnology Co., Ltd.
products: Seaweed Extract Fertilizer/Fish Protein/Chitosan Oligosaccharide/Amino Acid/Microbial Fertilizer/Trace Element Fertilizer/Organic Granular/Humic Acid/Water Soluble NPK
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Promote plant growth organic biological fertilizer plant growth promoter products
Agricultural water-soluble nitrogen, phosphorus and potassium fertilizer manufacturers 20-20-20