command = String.Format(@"INSERT INTO [{0}] VALUES ('" +
                        @product_articul + @"','" +
                        @"19"+ @"','" +
                        @product_name + @"','" +
                        @product_Vendor + @"','" +
                        @product_Count + @"','" +
                        @product_publish + @"','" +
                        @product_cost.ToString() + @" руб.')", @"Прайс$");

"INSERT INTO [Прайс$] VALUES ('22420144','19','Материнская плата ASRock K10N78D Soc-AM2 nF720D ATX SATA AC'97 8ch LAN-Gbt +RaiD','1','1','Y','1962 руб.')"