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There are many interior door lock materials, and we usually have copper, stainless steel, zinc alloy and so on. So what quality door locks are of good quality? If you have enough budget, stainless steel interior door locks are the best. The stainless steel lock has high strength, high safety factor and no discoloration, which is the best choice for indoor door locks. Zinc alloy door locks are very close to stainless steel door locks, and many people can't tell them, and they are easy to be fooled. About the door lock purchase skills, teach you how to choose a good door lock!

1. Check if the lock cylinder spring of the lock is sensitive.

You can open the lock cylinder repeatedly to see the sensitivity of the lock spring. If it is not very sensitive, don't buy it.

2, observe the processing quality of the surface of the lock

Observing the quality of the surface of the lock is also the key to measuring a good lock. At present, there are mainly three kinds of surface treatments for locks on the market, namely coloring, painting and electroplating. These three treatments are to add a layer of dense protective film on the lock surface, in addition to the anti-corrosion and anti-rust effect, The lock is more beautiful. These three treatment methods are undoubtedly the best electroplating, the coating is smooth and uniform, the color is bright, there is no air bubble, and the anti-corrosion and anti-rust ability is first-class.

3, pay attention to lock materials

Buy indoor door locks must pay attention to the material of the lock. Earlier we said that the stainless steel lock is the best. In addition to the stainless steel lock, the copper lock and the zinc alloy lock are also a good choice. The copper lock has excellent mechanical properties, but the price is relatively high; the zinc alloy lock is strong and wearable. Strong corrosion resistance.

4, can feel the quality of the lock

In addition to observation, we can also try to feel the quality of the lock. In general, the heavier the lock, the thicker the material used on the surface, the more resistant to wear and the higher the quality. Conversely, the lighter the lock, the thinner the material used, the lower the quality and the easier it is.

5, view the lock implementation standards

Locks are all implemented standards, some foreign locks are executed QB standards, the quality of locks is also higher, so imported locks are generally more expensive. Now some of China's brand locks are already implementing QB standards. Only some small manufacturers are still implementing the original GB standard, so it is necessary to see the implementation standards of locks when purchasing.

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