On October 9, Ningxia Xingping Fine Chemical Co., Ltd.'s quotation for calcium carbide is 4000 RMB/ton. The specifications of the calcium carbide are: grade: first-grade; gas production rate (20°C, 101.3KPa) / (L/kg) ≥: 280. This quotation has a validity period of 3 days. The quoting entity is: Ningxia Xingping Fine Chemical Co., Ltd.