Mysteel数据：无锡不锈钢期现货基差对比2024-8-15日期无锡地区不锈钢现货价格（304/2B2.0卷价）上期所SS主力合约宏旺投资福建甬金江苏德龙北港新材2024-8-913970143701392013920138202024-8-1213920143701387013870137302024-8-131392014370138701387013