【期货热点追踪】美铜期货溢价1400美元，沪铜主力合约站上八万关口！多头的底气来自哪里？

Group 1 - The core viewpoint of the article highlights the significant premium of U.S. copper futures at $1,400, indicating strong demand and bullish sentiment in the market [1] - The main copper futures contract in Shanghai has surpassed the 80,000 yuan mark, reflecting a robust performance in the domestic market [1] - The article questions the underlying reasons for the bullish sentiment among investors and traders in the copper market [1]