How to resolve the yin qi of the black security door?

Reddish-brown is the color closest to the original trees, and in order to make the wood grain look more realistic and natural, the reddish-brown background color naturally becomes the first choice.

The average family doesn't choose black. Taboo.

The black key you said is not the 2 keys for decoration, if it is a decoration key, it is possible to have this situation, but the probability is not large, you can use the official key to open and see, if you can, it means that the decoration key is automatically scrapped.

The thickness of the steel plate of the qualified anti-theft security door frame should be more than 2mm, the thickness of the door body is generally more than 20mm, the weight of the door body should be checked, generally more than 40kg, and the internal structure of the door body can be checked by removing the cat's eye, doorbell box or lock handle, etc., the thickness of the steel plate of the door body should be above, and there are several reinforcing steel skeletons inside, so that the front and rear panels of the door body are organically connected together to enhance the overall strength of the door body. Among them, the fire door should be filled with asbestos (fireproof cotton) and other materials with fireproof function as filling, knock on the door body with your hand to make a "knock" sound, and consumers should be flexible when opening and closing the door by hand. The door-to-door network reminds consumers that the production of fireproof doors should have the qualification certificate for the production of fireproof doors issued by the state.

It should be graphite powder or pencil foam, which can act as a lubricant. If your home security door is more stuck or not easy to move when unlocked with a key in the future, you can use a pencil to slip on the key, so that it will be lubricated.