Plastic steel doors and windows hardware to buy tips:
First, the lock material
The lock materials on the market are basically divided into stainless steel, copper and zinc alloys. Stainless steel has high strength, strong corrosion resistance, and does not change color. It is the best material for making locks; copper is more general, mechanical properties are superior, and the price is higher; locks are high-quality zinc alloys strong wear-resistant, strong corrosion resistance, and easy molding. Mostly used for mid-range locks.
Second, the lock surface treatment
The surface treatment is roughly divided into electroplating, spraying and coloring. The surface of the lock forms a layer of dense protective film on the surface of the product, which acts as anti-corrosion and anti-rust to make the lock more beautiful and durable. Lock industry network reminds: dense protective film is also a measure of the quality of locks, good quality locks, and more plating, smooth and delicate plating, uniform medium, bright color, no bubbles, rust and oxidation signs.
Third, the lock implementation standards
Foreign countries have very strict standards for hardware locks, so the quality of imported products is relatively high. We can feel the good or bad of our locks. Lock industry network reminds: In general, feel heavy locks, the quality is relatively high; the lock body can not be exposed, the exposed tip is easy to hurt, in particular, should pay attention to the lock handle end, the lock tongue and the lock body four corners three positions; The lock spring has a good lock to open, high sensitivity and long service life. Locks also have a variety of styles, and must be consistent with the style of the interior doors.
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