Does Tianjin Investigation Company have the truth?

Does the subject want to ask "which survey company in Tianjin is true"? Tianjin Zhengping Business, Tianjin Tan Ming Private Detective. According to the information inquired, Tianjin Investigation Company, Tianjin Zhengping Business Investigation Company, Tianjin Tan Ming Private Detective Investigation and Tracking Service Company, and Gao Bang Beckton 9 1 Beckton are all real investigation companies.