Wafangdian (Chinese: 瓦房店; pinyin: Wǎfángdiàn), formerly Fuxian or Fu County (Chinese: 复县), is one of the two "northern county-level cities", the other being Zhuanghe, under the administration of Dalian, located in the south of Liaoning province, China. The city is famous for its ball bearing industry. Wafangdian Bearing Factory is the largest bearing manufacturer in Asia and was initially built by the Japanese during World War II. Its area is 3,576.40 square kilometres (1,380.86 sq mi) and its permanent population as of 2010[update] is 942,197, compared to 1,024,876 registered with hukou permits. The city borders the prefecture-level city of Yingkou to the northeast.