Should I take it out after security check?

Metal products should be taken out for safety inspection.

Baji is a small iron badge, which belongs to metal products. It will make a noise when it passes the security check, so it needs to be checked separately.

The purpose of security inspection is to ensure the personal safety of passengers and prevent them from carrying some contraband, inflammable and explosive articles and controlled knives. You have to check the plane and high-speed rail vehicles.