There are Longwentang, Guiwentang, Jinshoutang, Jinlong Hall, Qinglong Hall, Yinxiutang, Meiquan Hall, Yewutang, Longyuntang, Longhutang, Longfangtang, Jinfengtang, Guanglongtang and Wanlongtang. Meiji period is the glorious period of iron bottle, with bright stars. There are four heavenly kings in Longwentang: Yasunosuke, Daguo, Ueda Zhaofang and Inoue. There are four heavenly kings in Guiwentang: Bodo Zhengping, Meiquan, Suzuki Guangzhong and Danhai Xiuguang. There are four generations of Zang Liu Tang, Xi Yuan Yi. Longwentang system has many hall numbers. For example, Jinlong Hall is produced by Longwentang for high-end customers, just like Toyota's Lexus. Other church names related to or contracted by Longwentang are: Qinglong Hall, Guanglongtang, Xulongtang, Wanlongtang, Xinlongtang, Shanlongtang, Dilongtang, Longshan Hall, Longhutang, Longfangtang, Qingshoutang, Ruiyuntang, Longyuntang and Jinxiang Hall. There is also Xiangyun Hall related to Daxi family. Zhengshoutang is the hall number of Beijing iron pot Chinese style, which spans Beijing iron pot, southern iron pot and local style. There are some other hall numbers that are very rare, such as the hall entrance of the Phoenix generation. Jinshoutang is one of the representative halls of Beijing and wok. Together with Longwentang, it is called the two systems of Japanese wok inscriptions. Compared with Long Wentang's fancy works, Jin Shoutang's works are more elegant and simple, and are famous for their exquisite gold and silver inlay technology and stable quality. Just like purple sand has flower goods and light goods, iron pot's flower goods belong to Longwentang Department, and light goods (also called plain pots) mostly come from Jinshoutang Department. Yugong Zong Bing, the founder of Jinshoutang, was in the same period as Yasunosuke. Iron pot, good at using gold, silver, copper and other metal materials to create mosaic techniques, has won wide acclaim for its unique creative techniques and exquisite workmanship. His works are deeply loved by European aristocrats, and now the Asian Folk Art Museum in Europe also collects the works of Jin Shoutang Rain Palace, which shows the historical position of Jin Shoutang. Soapy and Zong are both famous cauldron masters in the museum. Five pillars of Jinshoutang (Su Hu system): Yunsetang, Guangyu Hall, Shengzhu Hall, Songrong Hall and Sandetang. There are also Jinqingtang, Jinguantang, Jinyutang, Jinrongtang and Jinguitang. Minosuke of Yunsetang and Hetian and Teke Sato of Guangyu Hall have their own unique creative techniques, which are the representatives of their church names. Guangyutang is the boutique hall number in the plain pot, and Guangbaotang, Yongbaotang, Juguangtang and Shanxuantang are also metalworking. Goldsmith Guang Mao's works are comparable to Mei Longxuan in Jinlong Hall of Longwentang system. Popular celebrities in Metalworking Department: Mei Longxuan (Metalworking Master), Zong Xianzuo (Metalworking Master), Yasunosuke (Cauldron Master), Cauldron (Cauldron Master), Zhao Fang (Cauldron Master), Soby (Cauldron Master), Zong (Cauldron Master) and so on.