Hebei Shengyi Fertilizer

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ammonium sulphate fertilizer
Specification: capro grade,steel grade,ammonium sulphate granular
Detail: ammonium sulphate N content:20.5%-21% S content:24% SINOPEC raw material high quality low price less powder,hard enough,free flowing 15 years production and exporting experiences top three of tianjin port customers al...


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