[钢厂快讯] 15:12唐山钢坯降30 [钢厂快讯] 快讯:午后唐山钢坯暂稳 [钢厂快讯] 快讯:午后唐山钢坯涨30 [钢厂快讯] 快讯:迁安钢坯涨30 [钢厂快讯] 快讯:16:25唐山钢坯降90