... ,1000mesh 2. shape: powder 3. color: black 4. usage: rubber,coating,paint,decorate Packaging & Delivery:1. Packaging Detail : 25kg/bag or as ... powder size:20~100,325,400,800,1000mesh usage: rubber,coating,paint,decorate shape:powder1. Chemical Compositions: SiO2Al2O3 Fe2O3 Ca OMg OK2ONa2O44 ...