Locks are the first precaution in home security. A set of high-quality locks must have the function of anti-theft. They cannot be easily opened by thieves. They must also have excellent quality, have a long enough service life, and be durable. In the face of different types of locks on the market, the following three points will help you to buy locks:
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See materials
The lock material on the market is basically divided into stainless steel, copper, zinc alloy, iron steel and aluminum. Stainless steel has good strength, strong corrosion resistance, and constant color. It is the best material for making locks; copper is universal, its mechanical properties are superior, and its price is more expensive; high-quality zinc alloy is strong and wearable, and its corrosion resistance is very strong. Molding, generally used to make mid-range locks.
Look at the surface treatment
The general surface treatment is electroplating, spraying and coloring. These surface treatments can form a protective film on the product, which has anti-corrosion and rust-preventing effects, and at the same time makes the product more beautiful and durable. Good quality locks are generally plated. The coating is moderate, very uniform, and bright in color with no signs of bubbles, rust, or oxidation.
掂 Weight ratio feels to hear sound
To weigh, feel and feel the sound. The products that cut corners and materials are made of hollow materials and inferior materials. Such materials are very light and have poor hand-feeling, and the sound is very stuffy; good locks are the opposite.
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