电石、乙酸乙烯酯、聚乙烯醇、1，4-丁二醇、双氰胺和单氰胺单位产品能源消耗限额

The norm of energy consumption per unit production of calcium carbide, vinyl acetate, polyvinyl alcohol, 1,4-butanediol, dicyandiamide and monocyandiamide