In which episode of Superman Seven did two Ultraman Seven appear?

Episode 14.

According to Bilibili’s query, two Ultraman Seven appeared in the 14th episode of “Superman Seven”. In this episode, another type of evil cosmic being appeared, Sar. Lome star. They established a base on the sea floor and captured the group, and learned the secret of Ultra Light through the torture group. In order to gain Ultraman Seven's power, they built a robot exactly like Ultraman Seven and used this robot to fight Ultraman Seven.

"Superman Saiwen" is a book published by Jilin Photography Publishing House in 2008. The authors are Shi Dongjie and Sha Yue.