There are several criteria for the thickness of the security door

Four. The door frame should be selected mm and mm according to the level of A, B, C and D of anti-theft security.

The thickness of the outer panel and inner panel of the door leaf is expressed in the form of "outer plate and inner plate", which are respectively according to the level of A, B, C, and D of anti-theft security.

Choose mm mm mm mm

Generally, the household anti-theft door is based on grade C and grade D, and the higher the level, the higher the anti-theft performance.

Security doors are used in every home, and in order to meet people's needs, several standard thicknesses have been launched on the market. Next, I will introduce you to the banquet, and there are several standards for the thickness of the security door.

There are 4 criteria for thickness. According to the standard, it can be divided into four levels: A, B, C, and D, for example, the thickness of the façade of A and B is in millimeters, and the door frame is millimeters. For example, the thickness of the façade of the Class C security door is about millimeters, and the thickness of the door frame is in millimeters.

The front panel of the Class D anti-theft door is in millimeters, the rear panel is millimeters, and the door frame is millimeters.

How to maintain the security door.

1. Push and pull gently.

The security door is usually a steel door, and the hardness of the steel must also meet a national standard, and it must be pushed and pulled when opening and closing, if it is violently impacted for a long time, it will cause the components to loosen or shorten the life.

2. Door maintenance.

Usually also to use some soft dry cloth to wipe the surface of the anti-theft door, so as to protect the surface of the clean, but also to prevent corrosion and increase its height to be improved, to know that there is no need to damage the metal tool door leaf injury, it is best to peel off the protective film on the door before decoration.

3. Hardware maintenance.

After some days of installation and use, some metal fricatives may be produced. In this case, it is not a quality problem, it may be caused by insufficient oil on the hinges and bolts. Add some grease to this part on a regular basis to make it easier to open and close the latch and keep the part in use longer.

4. Lock maintenance.

Since the anti-theft door lock is also commonly used, if it is difficult to insert or difficult to take out the key after a long period of use, please do not lubricate it, you can wipe the key with a pencil, or blow the pencil lead foam into the hole.

According to the plate divided into A, B, C, D four grades and steel into the house a total of five kinds, grade A is the best, grade A, B are the façade door frame, grade C façade door frame, D grade front plate back plate frame, steel entrance is lower than the above 4 kinds of general term, the unit is mm.

The thickness of the door leaf is divided into cm.

There are two kinds of 1. The thickness of the plate: grade A, grade B, grade C, grade D, and some that cannot reach the level such as: , etc.

2. Door thickness: 5 cm, 7 cm, 9 cm, 10 cm, 12 cm, etc.

Generally, it is more than 7 cm and 9 cm, but there are also 5 cm, 11 cm, and 12 cm.