if the security door is the first line of defense in our home, then the lock core of the security door is the most important weapon of this line of defense, which means that the security door without the lock core of the security door is not called the security door. Next, we will introduce the brands of the lock core of the security door and how to choose the lock core of the security door. I hope the introduction of Xiaobian can help you.

1. What are the brands of lock cores for security doors?

1. Guangdong Jindian Atomic Lock Manufacturing Co., Ltd. is one of the top ten brands of lock cores for security doors, a leading lock core brand in China, and a well-known private technology enterprise, high-tech enterprise and lock manufacturing industry in Guangdong Province.

2. Bao De 'an, from Zhejiang Bao De 'an Security Products Co., Ltd., is a professional lock-making enterprise integrating design, development, production and sales with service. It is also one of the top ten brands of lock cores for security doors and a well-known trademark in China.

3. Guli Security Products Co., Ltd. is a high-tech enterprise in Guangdong Province, a brand-name product in Guangdong Province, a top ten brand of lock cores for security doors, a famous trademark in Guangdong Province, and a global leading enterprise in door-opening solutions.

4. Meilibao, Zhejiang Meilibao Lock Industry Co., Ltd., is a professional lock cylinder manufacturer integrating R&D, production and sales. It is also a well-known lock cylinder brand and one of the top ten brands of lock cylinders for security doors, and its industry influence is very strong.

5. Modile, Shenzhen Chang 'en Industrial Co., Ltd., is a brand owned by Israel's ASSAABLOY Group, which was founded in 1973. It is a world-famous brand and one of the top ten brands of anti-theft door lock cylinders.

second, how to select the lock core of the security door?

1. If we just want to simply replace the lock, then we can consider purchasing the previous lock core. We can take the previous lock core to a professional master for inspection. The experienced master will judge the quality of the lock core according to the degree of the key tooth, and analyze the new internal structure, so as to select a better quality B-class security door lock core for you according to your requirements.

2. For the lock core of Class B security door with good quality, it is generally treated by electroplating, so it has a smooth surface and bright color. This lock core has very strong robustness and anti-theft performance. If the lock core is found to be yellow in color, it may be made of copper, which is suitable for ordinary families. If the color is grayish white with certain bubbles, it is made of zinc alloy to a great extent, and its practical performance is not so good.

The above articles are some related knowledge about the lock core of the security door introduced by Xiaobian. I hope that after reading Xiaobian's introduction, everyone can buy the lock core of the security door with excellent quality.