On February 20, Shaanxi Coal & Chemical Industry Group's quoted price for calcium carbide is RMB 2820 per ton. The specifications of calcium carbide are: grade: first-grade; gas production (20°C, 101.3KPa) / (L/kg) ≥: 280. The validity period of this quotation is 3 days. The supplier of the quoted price is Shaanxi Coal & Chemical Industry Group.