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      1. 浙江超常锁业有限公司
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        Locks the internal structure and surface treatment

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            Thousands of families, a variety of anti-theft door locks can be seen everywhere, which is characterized is to ensure the safety of property, due to the different materials, the use of the object does not. In many cases will take into account the lock not as durable or will not be for some time the surface will rust or oxidation resistance, durable and best materials should be stainless steel (stainless steel is divided into ferrite and austenite. ), in particular, is used as a surface material, and more with the light.
            One of the most common in addition to iron locks, a lock of material is copper, it is also the most widely used locks material. Its good mechanical properties, corrosion resistance and processing properties are good, and the color is gorgeous, especially copper forged handle and lock trim, smooth surface, good density, nonporous, trachoma, is strong and rust-proof. Apart from the above two and there are some locks material is not used.
            The locks appearance is not limited to its color, more often, surface treatment refers to metal electrodeposition (commonly known as plating), painting (called spray), chemical oxidation (colored) or other processing methods in the part surface coverage or form a protective film. Film from the antiseptic effect, but also increase the appearance and durability, an important factor is a direct measure of product quality and merits of the cover layer thickness measurement, combined with the power to check, salt spray and humidity test, and appearance inspection, etc..
         
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