有色板块再度走强，怡球资源、常铝股份2连板

Group 1 - The non-ferrous metal sector has strengthened again, with companies such as Yiqiu Resources and Chang Aluminum achieving consecutive gains [1] - Dingsheng New Materials has reached the daily limit increase, while Zinc Industry Co. and Tongling Nonferrous Metals are close to hitting the limit [1] - Other companies like Zhuhai Group and Pengxin Resources have also shown significant gains [1]