Washington: U.S. ​factory ​production was unexpectedly unchanged in ​May as strength in the output of long-lasting ‌manufactured goods ⁠like ⁠motor vehicles was ​offset by declines in non-durable goods.The flat reading in manufacturing output reported by the Federal ⁠Reserve on ‌Monday followed an upwardly revised 0.7% ⁠jump in April. Economists polled by Reuters had forecast production at factories would rise 0.2% after a previously reported 0.6% surge in ‌April. Production at factories increased 1.4% on a year-over-year ⁠basis in May.Durable manufacturing output increased 0.8%. Production of non-durable ​goods like food and textiles dropped 0.9%.