镍连续主力合约日内跌4%

Group 1 - The core point of the article is that nickel's main futures contract has experienced a significant decline, dropping by 4% in a single day, with the current price reported at 141,310.00 yuan [1] Group 2 - The article indicates that the decline in nickel prices may reflect broader market trends or specific industry challenges, although further context is not provided [2]