位置：中游情绪：利空参考度：4/10
根据美国商务部出口数据，今年4月美国结构用管材出口量为5080公吨，较3月下降4.6%，较2025年4月下降14.8%。按价值计算，4月结构用管材出口额为1300万美元，上月为1263万美元，去年同期为1168万美元。
4月美国对墨...
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