Plum Zilong

Since there was already the East Factory and the Jinyi Guard, why did Ming Xianzong set up the West Factory?
East Factory Ming Xianzong Jinyi Wei Plum Zilong Wang Zhi
01-19
During the Chenghua period of the Ming Dynasty, the "Demon Fox Case" occurred in the capital, and the mysterious points in it have never been solved
Ming dynasty Zhu Jianshen Capital Hou Dequan harem Plum Zilong Wang Zhi Zhao Ling'an eunuch
12-16