1, 30%-85% 2,ISO 9001-2008 3,high quality 4,best customer service 5,10-15days delivery ... :20%-85%CAS NO.1313-13-9Formula:MnO2Fe1.0%-10%P :<0.3%Propertiesblack powderSiO2 :4%-18%Relative Density5.026Al2O3 :<5%Molecular ... certificateISO 9001:2008Delivery TermsFOB,CIF,CFRPayment termsTT ,L/C, D/P,EXWOriginXiangtan city,Hunan province,China.Delivery time5-10 days after ...