Question: 万华化学的最新交易日最低价
Answer: 必答点：万华化学的最新交易日的最低价
精度要求：仅允许四舍五入误差
Date: 2025/8/14
Reference data: {"600309___SH":{"RT_TIME":"150004","RT_DATE":"20250814","RT_LOW":"62.050000000000004"}}