《史记·七十列传·酷吏列传》
赵国人以冶炼铸造为职业，赵王刘彭祖屡次同朝廷派来主管铸铁的官员打官司，张汤常常打击赵王。
赵国以冶铸为业，王数讼铁官事，汤常排赵王。
The Zhao people worked as smelters and founders, King Zhao Liu Pengzu repeatedly sued with the officials sent by the court to supervise the cast iron, Zhang Tang often attacked King Zhao.