1, on the appearance: a security door, generous appearance and harmonious color, is our first consideration. The appearance should be as simple and elegant as possible, because the anti-theft door is installed for many years and will not be changed frequently. The simple appearance will not result in aesthetic fatigue. The choice of colors is based on the overall style of the home. The public has two kinds of colors, white and coffee colors, and the other colors are not good to match. When choosing, you must match according to your own wall and large furniture. When you choose white, you should pay attention because there are many kinds of white, and there will be color differences in different batches of doors. If you want to be the same as the other whites in your home, it is basically impossible and there will be a certain color difference. Some customers choose one color at a time inside or outside, so that they want to achieve the best of both worlds. However, due to the complexity of the process, the price of the two-color door is second only to the expensive one. The important thing is that this increases the chance of surface treatment quality problems. Note that two-color must make the door frame also two-color, or decoration, from the home will see the door frame and door leaf different colors.

2. Wall Thickness of Security Doors: Many customers focus on the thickness. The thickness is very important, but on the one hand, high-quality steel plates are also very important. The quality of steels with the same thickness will be very poor. Good anti-theft door will use high-quality cold-rolled steel, this is not good to observe with the naked eye, so still have to buy some of the well-known brands, anti-theft door a home to wear a set of brand-name than the average is not much more expensive. Thickness of the steel plate As long as the thickness of the door frame reaches 1.5 mm, the thickness of the door leaf is 1 mm. It is a good door, and many of the doors are 0.8 mm thick. If it is required that the thickness of the door frame is 2 mm, and the thickness of the door leaf is 1.2 mm, then it is not good to buy a security door. Many salesmen say that they are thick and thick, so long as the cat's eyes are unloaded and looked at, it's probably easy to touch and it's too thin. Can't buy it, but it doesn't have to be thicker. Many boxes in the market are 1.2mm thick and the door leaf is 0.8mm thick. In fact, the quality of the door is also good, and it must be viewed in many ways. The measurement of the wall thickness also allows errors, so the actual measurement of the door leaf can be selected to be 0.8 mm thick. Many poor-quality anti-theft doors are not 0.8 mm thick.

3, on the lock point problem: As some manufacturers do publicity at the lock point, customers feel that the more lock points as possible, about the unknown factory lock points have reached fifteen six. Today I would like to say that the more lock points are not better, the security door can only be locked in three directions, ie side and up and down. The more lock points, the more chance of failure, and in case there is a problem with which lock point, the door may not open. From an anti-theft point of view, all the lock points are controlled by one place, and there is no more meaning to them. Choose a lot of security doors for good sales, in the side also added a lock up and down, in fact, this is really not much use, but it is easy to cause failure, do not have to go to buy more than a few lock points.

4. Regarding the seal of the door frame and the door leaf: The seal of the door frame and the door leaf, now the major manufacturers have made several grooves between the door frame and the door leaf, the surface looks layered, but if the quality is not good, in fact each one The layers are not at all okay. Simply put a piece of paper on the card to see if it's easy to pull it out. The fewer layers you bite, but the more the paper won't move, shows that the door seal is doing well, the door leaf and the door frame The flatness of the verticality is very good. Should pay attention to a detail, open the door and touch the lower edge of the door to see if there is a ladder, if not, is directly flat, then the bottom of the door seal is very poor, because many manufacturers make a fuss on the side, the next door cut is leaking Big seam.

5, on the thickness of the door: The thickness of the past security doors are basically 5 cm, and later increased by 7 cm, 9 cm, or even more than 10 cm. In fact, the sound insulation of the door is not completely based on the thickness of the door leaf, but is the degree of sealing of the filling material, the door leaf and the door frame, and the thickness of the door leaf need not be excessively pursued.

6, on the filler inside the door: a good product has a steel frame in the door leaf, filled with polyurethane foam or fire retardant, poor product filled with honeycomb paper, no skeleton, detection methods: open the cat's eye to see, now there are individual The manufacturer will fill in the cat's eyes with a stretch, then specify in the contract, the filler is required to be stretched, and the keyhole can be detected before installing the door handle.

7, on the level of anti-theft door: security door is divided into four levels of A, B and B, this requires the lock and damage the door for a long time. Higher requirements can be selected for Grade A and Grade B. From the perspective of manufacturers' materials and processes, there is not much difference between them. Grade A and Grade B doors will basically have steel skeletons, a little bit of manufacturer's Grade C, and Grade C prices. Low, relatively cost-effective, D-class steel and filler are all worse, but from the perspective of the lock, all levels can require the same lock, so the level of security doors depends on their needs .

8, on the level of the lock cylinder: anti-theft lock is divided into A-level locks and B-level locks, as well as Super B-level, this time based on the technical opening and destructive opening time, the specific time a Baidu will know, I It is not here. Suggest that you can choose B-level, you can not judge, let the seller write the lock on the contract for the B-level.

9, on the security door specifications: Security doors are divided into two kinds of custom scale and size specifications. The scale is custom-made according to the actual size, and the size is 2050mm, 1970mm, 1920mm high, 860mm wide and 950mm wide. If there is no need to install a wall or repair seam, if it is in the process of decoration There is no problem with this, but if you have already completed the renovation, you will need to re-renovate the perimeter of the door. This size is the size of the outside diameter, after the installation of the internal diameter of about a little more than ten centimeters, so if the door is relatively narrow, in advance to think of expansion holes or advanced furniture, or after installing the security door, the size of the inner diameter of the door is much smaller Big furniture cannot move in.