/// <summary>
 /// 获取库存钢坯数量
 /// </summary>
 /// <param name="C_STL_GRD">钢种</param>
 /// <param name="C_STD_CODE">执行标准</param>
 /// <param name="C_MAT_CODE">物料编码</param>
 /// <returns>库存钢坯数量</returns>
 public decimal GetSlabKC(string C_STL_GRD, string C_STD_CODE, string C_MAT_CODE)
 {
     return(dal.GetSlabKC(C_STL_GRD, C_STD_CODE, C_MAT_CODE));
 }