It is made from well-selected Ningxia Taixi anthracite, used to add the carbon content of the burned steel during the smelting process. Mainly used for electrical manufacturing and foundry industry. Spe Grad F.C(%) Ash(%) Moisture(%) V.M(%) S(%) N(%) Size Super Grade 95min 4.0max 0.5max 1.0max 0.25max 0.3max . As clients' demands. 1st Grade 94min 4.5max 0.5max 1.0max 0.25max 0.3max 2nd Grade 93min 6max 1.5max 1.5max 0.3max 0.4max 3rd Grade 92min 6.5max 1.5max 1.5max 0.35max 0.4max 4th Grade 90min 8.5max 1.5max 1.5max 0.35max 0.4max 5th Grade 85min 13max 3max 1.5max 0.4max 0.4max 6th Grade 80min 16max 3max 1.5max 0.4max 0.4max Packing . As clients' demands.