32 mesh -100 mesh Fixed Carbon: more than 94-99.9% PH Value: 7 Particle size screen oversize: more than 80% Moisture: less than 0.5% S: less than 200 ppm Cl: less than 50 ppm Fe: less than 500 ppm F: less than 50 ppm Mica: 0 ppm Quartz: 0 ppm The above technical indexes can be adjusted according to the user's different requirements.