6月2日电，美国5月份ISM制造业指数降至48.5，预估为49.5。

Core Insights - The ISM manufacturing index in the U.S. dropped to 48.5 in May, below the forecast of 49.5 [1] - The ISM export orders index fell to 40.1, marking a five-year low [1] Group 1 - The decline in the ISM manufacturing index indicates a contraction in the manufacturing sector [1] - The significant drop in the export orders index suggests weakening demand for U.S. manufactured goods internationally [1]