After the security door is locked, what happens when you pull it hard outside a few times?

Since it is an anti-theft door, it must not be, and after the anti-theft door is locked outside, you can only use a key to open it; Or some brands of high-end doors are locked on the outside, and you can't open it if you have a key inside, so you can only open it violently or ask the lock company.

Please check the locksmith, this problem sometimes spring return problem, there is a stuckness of each part, so it can not be judged without handling, so it should be dealt with by on-site repair personnel.

It is only a matter of time before the personnel of the lock picking company can open any kind of lock. The lockpicking company asks you for an ID photo, which is a rule. In case of an accident, the locksmith can leave the relationship aside.

The anti-theft door is generally a lock cylinder that can only hold a key at the same time, you have a key inserted inside, and the outside must not be opened, now you can only find a way to pull out the key inside or knock it out, or find a lock company to open the door.

Each brand has different doors, so the functions are also different. Most security doors can be opened with a key inside. >>>More