The door lock is rusty, it is the lock of the anti theft door, the cross key, how to open it

It's very simple to deal with, use a few drops of special lock lubricating oil to remove rust and smooth.

Most of the well-known lock factories such as Escola use fully synthetic lock lubricants from Hotolube or Kluber. Fully synthetic base oil production, clear and transparent, colorless and odorless, low temperature resistance, no dust. Tao Satie has a 30 ml small oil bottle with a pointed nozzle, which can be dropped with a few drops, which is easy to use.

The service interval is six months.

Mineral oil should not be used because it is highly viscous and tends to get dirty. It is also not suitable to use pencil end or black graphite lubrication, which cannot lubricate the internal parts, and there will be heavy metal and color pollution.

Just put some cod liver oil in the lock.

Dial 110, he will tell you a lock phone, generally door-to-door charge of about 50 yuan.

Use the heart of a pencil to scrape with a knife and blow it into the keyhole to open it.

Pour some oil into the lock, I don't want to know what oil.