Most people can easily confuse crystal with ordinary glass when buying crystal. How do you distinguish between crystal and ordinary glass? Here are a few tips:
Condition analysis: Flat feet are divided into congenital flat feet and acquired flat feet. Acquired flat feet are also called functional flat feet.Flat feet can cause a range of symptoms, including severe foot pain, swollen ankles and, in some cases, pain in the knees.Some of these symptoms are accompanied by cramp in the instep and calf pain, which can get worse gradually and become more pronounced after prolonged standing and walking.This can be defined as a severe flat foot.
For patients with flat feet, regular maintenance is also very important, patients can often soak their feet with hot water, often on their own foot foot massage, or wear some special corrective insoles.
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1. Listening: With the middle finger, the sound of ordinary glassware is a more boring "click" sound, while the sound of a crystal ware is more brittle. It is a "dangdong" sound with metallic sound, and the crystal is higher in hardness. The louder it is. 2. Gloss: Compared with sunlight, the colorful light reflected by high-quality crystal is bright in color, and the transition light is very natural and abundant. The color of glass refraction is often incomplete, and it is relatively dim. Its transparency is compared under natural light. High-quality crystals have high transparency and show crystal white, while ordinary glass or impure crystals can be yellow or mixed with cyan.
3. Pattern: For the same color of crystal, the higher the degree of manual exquisiteness of the pattern, the more elaborate and complicated the patterning on a small area, the higher the value. Touching the hand, the surface of the hand-patterned pattern has a rough feel of the handle, and the surface of the mechanical pattern is smooth.
4. Use: As the crystal hardness is much higher than that of ordinary glass, it will not become dirty after long-term use. However, if the glass is repeatedly used for a long time, it is easy to have scratches and surface contamination. After you have made it clear, all you have to do is check carefully whether the product is in good condition, whether the appearance is flawed or not, and whether the surface is smooth and delicate.
The maintenance of the crystal is extremely simple, as long as it is cleaned with clean water or wiped with a semi-moist cloth after use, while for those small crystal ornaments, you only need to brag it without having to wipe it to prevent it. Crystal surface fluffy. In addition, because the hardness of the crystal is relatively high, the toughness is small, and it is easily broken due to heavy impact. Therefore, it is necessary to avoid bumping when using it in peacetime. Should also pay attention to avoid the use of alkaline, acidic and alcohol-based detergents to avoid corrosion, such as ashtrays and other containers should also minimize the heating time, so as to avoid damage to oxidation.