中国最大青铜器司母戊鼎
Wuding Ding, the largest bronze wares in China
司母戊鼎器形庞大浑厚，是中国目前已发现的最重的青铜器，其腹部铸有"司(后)母戊"3字;是商王祖庚或祖甲为祭祀其母所铸。司母戊鼎的鼎身和鼎足为整体铸成，鼎耳是在鼎身铸好后再装范浇铸的。铸造这样高大的铜器，所需金属料当在1000千克以上，且必须有较大的熔炉。经测定，司母戊鼎含铜84.77%、锡11.64%、铅27.9%，与古文献记载制鼎的铜锡比例基本相符。司母戊鼎充分显示出商代青铜铸造业的生产规模和技术水平。
The simu-wu tripod is the heaviest bronze ware ever found in China. Its abdomen is cast with the words "simu-wu". It is made by the Shang King's ancestor Geng or ancestor Jia to worship his mother. The tripod body and tripod foot of Simuwu Ding are cast as a whole. The tripod ear is cast after the tripod body is cast. For casting such a large copper vessel, the required metal material should be more than 1000 kg, and there must be a larger furnace. The results show that Simuwuding contains 84.77% copper, 11.64% tin and 27.9% lead, which is basically consistent with the proportion of copper to tin recorded in ancient documents. Simu Wuding fully demonstrates the production scale and technical level of bronze foundry industry in Shang Dynasty.