The Huanan Carbon Factory in Shijiazhuang City is a professional manufacturer of carbon products in the metallurgical industry. It has a history of 30 years. Advanced production technology and strong technical force. Complete production equipment, quality testing, and complete inspection facilities. The product quality complies with YB/T4088-2000, YB/T4089-2000 and YB/T142-1998 standards. And equivalently adopts IEC60239 "Nominal Size of Graphite Electrode for Electric Arc Furnace".