Selection of hardware fittings depends on raw materials and workmanship
Professionals said that the commonly used hardware accessories mainly include copper, aluminium alloy, stainless steel and iron, and their quotations vary greatly. At present, stainless steel hardware is mostly used for household decoration, but stainless steel raw materials have defects such as impurity of raw materials, simple watermark printing and so on. Now many families begin to use parts made of aluminum alloy raw materials.
According to statistics, the aluminum materials claimed by some shop owners in the sales market were originally aluminum alloy materials containing aluminum content. In addition, silicon and magnesium were added to the aluminum alloy materials, and the factors such as the thickness of the surface film layer and the technical solution of the surface were also harmful to the price and quality of the materials. External surface treatment technology mainly includes oxidation, grinding, electroplating, wood grain and baking paint. And the quotations for goods are quite different.
Professionals say that the common aluminium alloy materials in the market mainly include aluminium magnesium alloy and alumina. The price difference between the two is close to one-third, because the data of alumina and aluminium-magnesium alloys are similar in appearance, which makes it difficult for consumers to distinguish them, but they can still be distinguished from hand feel and water stains. The data of Al-Mg alloy is relatively heavy and its appearance is relatively smooth. It not only shows water stain, but also has good wear resistance. However, the alumina data are rough in appearance, simple in blackening or showing water stains. On the other hand, if there are slight scratches on both surfaces, the Al-Mg alloy data will be simply erased, while the Al-Al alloy data will be difficult to remove. In addition, due to the difference of hole spacing and model, the price of door handle will also vary greatly.
Beware of stainless steel turning into "stainless steel"
Some citizens reported that when they purchased stainless steel parts, they found a large amount of stainless steel, i.e. stainless steel materials mixed with a large amount of iron, the price difference was nearly double. Take bath towel rack as an example, the average price of stainless steel raw materials is 200 yuan, while the price of stainless steel is only 70 yuan, the appearance is basically the same. However, the appearance of stainless steel materials is bright, and the appearance of stainless steel used for a long time is simple, dark and rusty.
In addition, there are some counterfeit commodities made of inferior aluminium alloys, whose outer surface is coated with metal light and counterfeit high-grade stainless steel to distinguish the two kinds of data. Citizens can bump into their appearance when they buy. If loud noise is announced, most of it is stainless steel. If it's a dull noise, it's probably the gold that aluminium "covers in the jacket".
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