If the motivation for buying gold is to invest, and don't care if you must have physical gold, consumers can also consider alternative methods, such as paper gold, gold spot and futures, gold funds, etc., to avoid the risk of adulteration of physical gold.
The purchase of physical gold, such as gold bars, has become a hot-for-money asset-preserving method for many consumers. However, in some places, the gold market has been adulterated from time to time, which has harmed the interests of consumers. The recent exposure of a brand "golden necklace adulteration" incident has made many consumers more suspicious, how to prevent the purchase of adulterated gold?
Experts said that there are some tips for distinguishing gold adulteration. For example, look at the color, the higher the purity of gold jewelry, the darker the color; the weight of gold, the gold jewelry should have a sense of sinking in the hands, the fake gold jewelry will feel light; The sound, the color of more than 99% of the real gold tossed on the hard ground, will make a squeak, no sound and no elasticity. The fake or low-quality gold sound is crisp and not dull, and generally gives a "dangdang" sound, and the sound has a residual sound. After landing, it beats fiercely; look at the mark, the domestic gold jewelry is made according to international standards, and 打Remember, such as "24K" marked "foot red" or "foot gold", 18K gold marked "18K".
However, the level of gold adulteration is high or low, and these simple methods may not be suitable for those “high level†frauds. Therefore, if consumers want to ask for reassurance, they may still need to go to a professional supervision agency for testing. If the "Thousands of Gold" is doped with antimony or tungsten, a professional precious metal detector can be seen. In addition, there is a method of destructive testing. If the tester can withstand tens of milligrams of wear, dissolve some of the gold, and send it to a high-resolution plasma mass spectrometer for destructive testing, it can also get very accurate results. However, these tests are subject to a certain fee.
If the motivation for buying gold is to invest, and don't care if you have to have physical gold, consumers can also consider alternative ways. For example, paper gold is a kind of personal voucher gold. Investors buy and sell “virtual†gold on the books according to the bank price. Individuals can earn the fluctuation of the price of gold by grasping the trend of international gold prices and attracting high prices. The investor's trading transaction record is only reflected in the “golden passbook account†pre-opened by the individual, and no real gold withdrawal and delivery occurs.
In addition, the gold T+D trading of the Shanghai Gold Exchange, the gold futures of the Shanghai Futures Exchange, and the gold fund and other investment methods avoid the problem of gold adulteration because they do not involve the delivery of physical gold.
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Label: Gold Spot Gold Price Gold Futures Gold Jewelry Gold
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Product name:Spring Steel Wire
Standards:
DIN 17223-1 Round Steel Wire For Springs
DIN EN 10270-1 Steel Wire For Mechanical Springs
GB 3206-82 Carbon Constructional Quality Steel Wire
JIS G 3521-1991 Hard Drawn Steel Wire
GB 4357-89 Carbon Spring Steel Wire
YB/T 5220-93 Carbon Steel Wire For Non-Mechanical Springs
Diameter: 0.20mm-12.50mm
Usages: compression spring, torsion spring, extension spring, agricultural machines, die springs, strip & wire forming springs.
Material: 30MnSi, 62A,62B, 60, 65, 65Mn, 70, 75,72A, 72B, 77A, 77B, 80,82A, 82B
Spring Steel Wire
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