国际铜夜盘收跌0.16%，沪镍夜盘收跌约1.1%

Group 1 - International copper futures fell by 0.16% in the night session, while Shanghai copper dropped by 0.10% [1] - Shanghai aluminum decreased by 0.48%, and Shanghai zinc fell by 0.22% [1] - Shanghai lead experienced a decline of 0.86%, and Shanghai nickel dropped by 1.08% [1] Group 2 - Shanghai tin saw a slight increase of 0.19% [1] - Alumina futures fell by 0.36%, and aluminum alloy decreased by 0.60% [1] - Stainless steel futures dropped by 0.32% [1]