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联系人 Ms. davina
furong ROAD, changsha, HUNAN
standrds of produc: gb*******9 packing: pcked in polyplastic-linked woven bag,net weght *0kgs. items indexes the excellent grade the 1st grade the qualified grade feso4 7h2o *7.0 *4.0 *0.0 tio2% &#***5; 0.5 0.5 0.*5 insoluble matter in water<< 0.2 0.5 0.*5 ferrous sulfate monohydrate content: &#***5;*1% fe: &#***5;*0% as: &#***4;3ppm pb: &#***4;*0ppm cd: &#***4;*0ppm
