The concept of safety locks has entered the domestic market for a short time. The products of safety locks on the market are also uneven and uneven. Many purchasers of enterprises have some problems in selecting safety locks. Therefore, users should choose high-profile and long-established Brands or brand agents, because they have sufficient economic strength and a stable network system to protect services and after-sales, to avoid disputes caused by product quality problems.
1, look at the surface treatment status
Locks are usually plated, sprayed or colored before leaving the factory. These steps are beneficial to the lock itself, because after this series of treatments, a protective film is formed on the surface of the lock to prevent corrosion and oxidation. . Through this point, the user can directly measure the quality of the lock.
2, 掂 weight than the feel
The locks for cutting corners are generally made of hollow inferior materials, which are not only light and light, but also have a poor hand feel.
3, see the safety standards
At home and abroad, there are very strict standards for hardware locks. Small manufacturers will not perform according to standards in order to save costs, and big brands generally follow the standards.
Second, the maintenance of safety locks
1. The lock can not be exposed to rainwater for a long time. The rainwater that falls will contain nitric acid and nitrate, which will corrode the lock.
2, usually keep the lock clean, do not let foreign matter enter the lock core, resulting in difficulty opening or even open.
3. Inject lubricant, graphite powder or pencil powder into the lock cylinder regularly to help reduce the oxide layer left over from the use of the lock.
4. Pay attention to the thermal expansion and contraction caused by the weather (wet spring, dry in winter) to ensure a reasonable fit between the lock body and the key to ensure smooth use of the lock.
To protect your property and your life, use locks that meet industrial safety standards!
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