上期所基本金属期货夜盘收盘全线下跌，沪锡跌4.27%

Group 1 - The core viewpoint of the article indicates that all basic metal futures on the Shanghai Futures Exchange experienced a decline during the night session on February 13 [1] Group 2 - Shanghai tin fell by 4.27% [1] - Shanghai nickel decreased by 3.74% [1] - Shanghai copper dropped by 2.58% [1] - Stainless steel declined by 1.92% [1] - Shanghai aluminum fell by 0.91% [1] - Shanghai zinc decreased by 0.63% [1] - Alumina dropped by 0.46% [1] - Shanghai lead fell by 0.30% [1]