国际铜夜盘收跌0.67%，沪铜收跌0.64%

Group 1 - International copper futures fell by 0.67% in the night session, while Shanghai copper dropped by 0.64% [1] - Other metals also experienced declines: Shanghai aluminum down by 0.82%, Shanghai zinc down by 0.24%, Shanghai lead down by 0.77%, Shanghai nickel down by 0.71%, and Shanghai tin down by 1.12% [1] - Alumina futures decreased by 1.62%, and aluminum alloy fell by 1.01% in the night session [1] - Stainless steel futures saw a decline of 0.24% [1]