ole jewelry wholesale Go to those places to detect the authentic and false places?

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ole jewelry wholesale I have a gold necklace, but I do n’t know about it. I want to know that those places can be tested. How much does it cost?

7 thoughts on “ole jewelry wholesale Go to those places to detect the authentic and false places?”

  1. Herbert

    khloe collection jewelry wholesale 1. National Jewelry Quality Supervision and Inspection Center
    The National Jewelry Quality Supervision and Inspection Center is a national quality inspection institution authorized by the State Administration of Quality Supervision and Inspection and Quarantine in accordance with the law. The secretariat of the committee presides with the formulation and revision of national standards and industry standards.
    2. The Jewelry and Jewelry Management Center of the Ministry of Land and Resources
    is a national jewelry and jade professional quality inspection institution authorized by the State Administration of Quality Supervision and Inspection and Quarantine in accordance with the law. It has passed the national -level measurement certification, the laboratory ISO/IEC17025 approval of the laboratory of the China Laboratory Council, and the review and recognition of the national product quality supervision and inspection agency. It is an authoritative institution in domestic jewelry and jade testing.
    Pucting information
    Suk of precious metal jewelry purchasing points:
    1. recognition of precious metal jewelry inspection results
    The precious metal jewelry sold on the market, most of which are equipped with the identification certificate and certificate of the quality inspection agency Essence The identification certificate and the certificate clearly marked the purity and quality of precious metal jewelry (only for jewelry for quality settlement).
    2, recognize the precious metal jewelry mark
    The precious metal jewelry marks refer to the logo printed on the precious metal jewelry. R N The contents of precious metal jewelry should include: manufacturer code, material, and purity mark. When precious metals with different materials or different purity make jewelry, the materials and purity should be expressed. It should be attached to the logo containing the mark content.
    Reference materials Source: Baidu Encyclopedia-National Jewelry Quality Supervision and Inspection Center
    Reference materials Source: Baidu Encyclopedia-Jewelry and Jewelry Management Center of the Ministry of Land and Resources

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  2. Dolores

    wholesale chinese jewelry Is it to detect gold jewelry? If the purity is detected, you should go to the local quality supervision bureau or the local formal large -scale pawn.
    The method of identifying the golden method of self -identification:
    1, see the color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so-called green gold contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference.
    2, 量 weight: The proportion of gold is 19.32, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40 % heavier than the silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.
    3, see hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth marks. High -colored gold jewelry is lower than soft in color. The bending method can also test the hardness. The pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.
    4, listen to the sound: Throw the real gold with a color of more than 99 %, and it will make a tap sound, there is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.
    5, burning with fire: The jewelry will be burned red with fire (do not melt the jewelry), and observe the color change after cooling. Black is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
    6, look at the mark: Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; 18K gold, the word "18K" is marked For those who have a color lower than LOK, the K gold printed number cannot be played according to regulations. At present, illegal elements are commonly used to manufacture fake cards and imitation stamps in the society. They use rare gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality of the real.

  3. Domingo

    tahitian pearl jewelry wholesale In the shop that buys gold, or you take the pawnshop to ask, say that you want to be, see what the price he is on, and then say it is not proper, he thinks less money,

  5. Norman

    wholesale statement jewelry uk Pay content for time limit to check for freenAnswer precious metal jewelry purchase points: 1. Recognize the precious metal jewelry sold on the market for the inspection results of precious metal jewelry. The identification certificate and the certificate clearly marked the purity and quality of precious metal jewelry (only for jewelry for quality settlement). 2. Recognize precious metal jewelry marks on precious metal jewelry marks on precious metal jewelry. It is a promise of precious metal production and sales units on the quality of precious metal jewelry. my country's national standard GB 11887 stipulates that the content of precious metal jewelry marks should include: manufacturers Code, materials and purity marks. When precious metals with different materials or different purity make jewelry, the materials and purity should be expressed separately. When the jewelry is too small,n1. National Jewelery Quality Supervision and Inspection Center 2. Jewelry and Jewelry Swish Management Center of the Ministry of Land and ResourcesnQuestion about Guangdong ProvincenAnswer Guangzhou Gold and Silver Jewelry Inspection CenternMore 2nBleak

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