1. It is made from well-selected Ningxia Taixi anthracite and calcined at around 1080°C, used to add carbon content to burned steel during the smelting process. Mainly used for the electrical manufacturing and foundry industries. Carbon additive is an additive used in steelmaking and casting processes, primarily for increasing carbon content, improving coal quality and utilization efficiency, and reducing pollutant emissions. It is widely applied in melting processes, in-furnace carbon addition for induction furnaces and cupolas, carbon addition for duplex processes, in-stream carbon addition for molten iron ladles, carbon addition for special steel smelting, and carbon addition for ductile iron casting. Composition and Specifications: Common carbon contents for coal-based carbon additives are 88%, 90%, 92%, 93%, and 95%, with a sulfur content of 0.3%. The particle size is generally 1-3mm, 1-5mm, or 5-8mm. Packaging is typically in 25kg small bags or 1000kg bulk bags.