Misconception 1: that the thicker the door, the better the correct one: the strength and weakness of the safety door's resistance to damage is not necessarily related to the thickness of the door, and it is mainly related to the thickness of the door leaf steel plate. The door with a thick steel plate is relatively good. 

Misunderstanding 2: Only the door is checked and the lock is ignored: Most consumers always focus on the door when purchasing a security door, and ignore the investigation of the lock. Nowadays, the situation of the safety door lock being pried is unpredictable, so when buying a safety door, it is also key to choose a good lock. 

Misunderstanding 3: The more lock points there are, the better the anti-theft, the better: When consumers choose to buy, merchants will promote the safety performance of the door with more lock points in the security door. In fact, this is confusing the concept of lock points and lock cores. The lock point is the point where the door and the wall are connected, and it has anti-plitting performance, but the lock core is the key to the lock. Once the lock core is opened, all lock points will be opened.

Misconception 4: You can buy a good door even if you are cheap: the cost of a qualified safety door is more than 700 yuan, and the market price of a safety door has reached 1,000 yuan. Based on this, consumers know how to choose when facing low-priced safety doors.