On October 8, the price quoted by Inner Mongolia Zhonglian Chemical Co., Ltd. for calcium carbide was 2900 yuan/ton. The specification of calcium carbide is: grade: first-grade; gas production (at 20°C and 101.3KPa) per liter of weight/kg: ≥: 280. The validity period of this quote is 3 days. The provider of the quote is: Wuhai Zhonglian Chemical Co., Ltd.