Информация о производителе
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1) Specification Appearance: black brown powder Size: 80-100 mesh Water-solubility: 95%-97% Humic acid (dry base): 55%-60% Potassium content (K2O): 8%-10%PH:8-9 2) Package: 25kg /PP.woven bag or 25kg / paper bag with inner plastic lining
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